I've had my 05 since new in 06. Can't say where or how many problems you'll encounter, but if it's like most barn projects I've done expect to spend some coin getting it right. Here's a pic of one of my rejuvenations (it sat under a tree for a few years before I got it).
Looks sweet good restoration man. Ya I know have to spend the cash but looking forward to the challenge. Never rode a rocket and suspect it will be a while before I get the pleasure