The main electronics are easy wackywheelz has done an excellent job on a tutorial for the boards
and you might want to check out Tanxalot's T34 build he converted an I/R T34 to standard H/LONG S+S boards not long ago and he covered a lot of new ground on that one
If i find the link I'll post it up for you and my T34 build might give you some help

This is Mikes build http://www.rcuniverse.com/forum/m_68...tm.htm#6890791

This is mine http://www.rcuniverse.com/forum/m_68...key_T34/tm.htm

Rob