So I used the fuse to see how much room I had to work and realized that there really is'nt much, so thinking out the placements is wise. You have to realize that the plane balances using your battery pack in a cut out just forward of main spar in the wing. For this reason you are restricted to aft of spar for servo placements, reciever, linkages. Oh yeah and it all accesses through a cut out forward canopy setup.

In a word....TIGHT! but workable with some thought.

In the first picture you can see the factory servo cut outs for the aileron and elevator. The kit supplies ply for your servo's to drop into. You then glue them into the provided cutouts. I used ht-55 servo's that I had from a downed Alfa F-86. I'll use a ht-81 servo for the rudder as I have one on hand...and again steal from the Alfa(elevator control horn and pushrod) to use for the rudder on the P-40.

I'm going to use the 2.4GHz Futaba 7 channel, Jeti 25amp Esc, and Thunder Power 3 cell 11.1v lipo