Without the Yavin jacket, this figure does look a bit thin. I thought about using a Jedi Knight Luke, but the shirt on Yavin Luke best resembled his appearance. I also wanted to use Dagobah Luke but there is added articulation in the shoulders which would result in paint rub no matter what I did.

With my dremel I had to widen the arm sockets just a tad, and filed down the peg on the inside of the holster. The legs were swapped out with Snowspeeder Luke legs. The only painting done was on the waist/crotch area. The black belt is only there because when the Yavin holster was removed, there was a hole that it plugged into, making it visible - its just to cover it up.

Head/Torso: Yavin Luke
Upper Arms: Jedi Knight Luke (Walmart)
Lower Arms/Hands/Blaster & Lightsaber: Dagobah Luke
Legs: Snowspeeder Luke
Holster: Young Han Solo
Belt: Endor Luke