Ahh, Roger, when I saw this question I just saw the bit about the batteries and the motor, and reacted to that.  Sorry.

So, comments on what I saw:

Things don't match up.  You can probably put a plane into the air with that and it'll work, just not as well as it could, so if you want to, don't let me stop you!

The first thing you need to do is check the motor.  The eFlight Power 25 comes in two variations: one has a kv of 870 RPM/volt, the other is 1250 RPM/volt. 

Basically, if you're flying stunt, the batteries are about right for a 25 ounce plane, so an Akromaster or similar sized. And if you're running the 870 kv motor, it'll never turn very fast and you'll need a really high pitch prop.  With either motor, the motor and ESC will be way heavier than you need.

But the motor (with either kV) and the ESC are good for a 48-54 ounce plane if you marry them up to the right battery.  This is a bit smaller than the current crop of "pro" stunters, but smack in the middle of the range of profiles out there -- you just need to use a different battery pack.

So, you can either put together a little plane to match your batteries, with a super-heavy motor.  It won't stunt well, but it should still fly. 

Or you can get suitable batteries for your ESC/motor combination and put that combination on a typical 500 - 600 square inch stunter built appropriately light.  Unless you're on a super-tight budget this is what I'd recommend, because batteries are more or less a consumable anyway -- they're what you spend money on instead of fuel when you go electric.

As for the timer -- see my response on the original thread.

The motor is 870kv. Would a 9/6 prop be ok?

That's such an odd motor/battery/prop combination that I just don't know.  With three cells you'll be turning the prop at around 8000 RPM, and I'm not sure that a 6" pitch will be enough.  I'd go to the field with a 9/6, a 9/7, and a 9/8; start with the 9/6 and go up.

The ESC has 3 wires to the motor and two wires to the power and a plug the goes to channel 3 on the RC receiver.
NOW for the timer looking at the photo of the Touch-and-go, I would believe that those three wires, (the ones that would go to the RC receiver), go to the Ground/Power/Signal. I am thinking that the three wires brown/red/orange connect in that order to the timer as shown in the photo.

Yes.  Red to +5V, brown to ground, and orange to signal.

The airplane I am using has an area of 327 sq.in. My fox 25 pulls it very well on .012" lines.

Weigh it with the engine in, then add three ounces (basically, find the weight of the airplane with a full tank).  If that's no more than 25 ounces, you should be fine.  Even at 30 ounces the thing may fly, but it may not have enough battery for a full pattern before they poop out.

Do you have anyone local to you that flies electric?

Roger,
   That's pretty much a 4 cell motor and will easily pull a full sized stunt plane and swing up to a 13 inch prop. If you are going to be flying a smaller plane I would recomend a power ten sized motor for 375 square inches and an 8 or 9 inch prop.Electric motors are way overrated power wise . We are pulling ARF nobler sized airplanes up to about 45oz(with battery)  on eflite power tens or equivalents. We are using 4s 2200-4s 2800's . This set up also works great on ringmaster or flite streak sized planes. I'm not familiar with your speed control but it would probably work well with a KR governor timer for best performance. If you went to a castle speed control  the Hubin FM9 timer would be the simplest if pared with a Talon 35 or similar. You can also look through the list your set up on here and see what people with similar planes are using. . You will notice patterns very fast. Hope this helps a little. Copy whats known to work to start then tweak as necessary. Others here can also give good advice. This is a motor that wont break the bank and that we have sucessully used for those sized planes  https://www.hobbypartz.com/86mb18-rocket-3010-1190kv.html
  Will

WOW, thanks, guys for all the good information, and yes I am on a budget. All the aforementioned motor, batteries, etc. I bought them used for under $50 from the RC guys in the club. (I looked on Amazon for the price of what the club sold me, and new they were $200.00 so what a deal I have). I have a Flight Streek I made back in 1976 and I will mount them on it to see what happens. I am sure life is going to get in the way this week, it always does when it comes to having fun with the hobby. However, I will post when I have them attached to the FS. And when the weather gets better here in Delaware I'll fly it.

Again thanks,

Roger

Roger, if you want to use equipment as you acquired from your friends, you will need Brodak timer FM-Oc , or  Brodak/Hubin FM Hornet. E-Flite 25 motor will run on 3 cell lipo with bigger prop like APC 14x10. Flight time will be something like 2.5 - 3 minutes on 1800 mAh capacity battery.

Jerry