I am building a profile testbed to get things right before building a real airplane and I have a question on component weights.  This beast will be powered by an OS46FX which is HEAVY but powerful.  I am not the scientific type so I need some help answering a weight distribution question.  By nature I build light.  My .35 size planes were always under 40oz.  Now I am in a totally different world and I don't know what things should weigh. 
I don't like adding weight to get the CG right although it is almost always necessary. 

The finished stab weighs in at 80 grams unfinished.  I plan to use Monocoat so the finish will not be too heavy.  Is this heavy for a stab on a plane this size (620 sq")?  Is it better to add strength to the tail and fuselage knowing that I have a 14 oz of lead in the nose already.

Sit down and start reading through the posts of the build threads on this forum.   Yes it will take time and as for me a couple of pots of coffee to read them.

Been there, done that, ran out of coffee.  That is why I posed the question.  Very few people use the FX.  Most everything I found was for the LA and absolutely nothing on the  concept of intentionally building a heavy rear end instead of adding tail weight.

Well one way is to move the engine back on the mounts.  Granted you may have to cut into the leading edge of the wing for a fuel tank.   

Also adding a longer fuselage for the tail surfaces shouldn't hurt that much.   In fact it will give the elevator more power to maneuver.

John, Ken.
When faced with cutting in to leading edge for tank space on a few profiles, I have mounted the tank on the inboard side of the fuselage to eliminate weakening the LE. Have flown most of the pattern with this configuration , no fuel feed problems. Comments anyone?
Roger V.