It is not going to be a problem to put a bend in the throttle rod sufficient to make it to the servo arm. The throttle will have little or no stress in flight. What I found in building the two Avistar's I have is that it actually made it easier to put the battery and receiver on the tray in front of the servos.

By epoxying blocks in you may end up with unwanted weight and also taking away some of the useable room inside of the fuse.

Hope this helps.

T.