Numismatically, your Skyray 35 fidelity points will go up if you use a Liberty dollar for the TE trace-O-matic and a Kennedy 50 cent piece for the LE....
I can't help you with the straight line between them. After a very crooked life, I'm still trying to "straighten up."
Now, wait, you say. This here's the 1/2A section of the forum and we ain't talking about no Skray Three-Fiver. We're talking about a Skray Bambinoso. Oddly, yer gonna need even bigger coinage. You can use the big Liberty dollar now for the TE, but yer gonta need a honkin' coin for that LE. Sucker is about a 3-1/4" diameter, so fuggedaboud silver and go for a big pickle jar lid.
Good luck going in all them circles....
The Divot