They don't look too long to me... I've never had a problem with long pushrods as long as the outer tube is glued to the formers and/or supported as much as possible down the length of the fuse so they don't flex under pressure. Pull-pull would be even better, easiest to do just the rudder as pull-pull though.

I agree about 2 elevator servos... Unless you think you'll need both of them, one with a split connection to two pushrods would work nicely. You can build your own (download the GP super skybolt manual, there's a technique laid out in there) or buy one: http://www3.towerhobbies.com/cgi-bin...?&I=LXBWL8&P=7