On Mar 8, 12:45*pm, wrote:
The original builder can do any maintenance or modification he desires
while the buyer has to follow the same rules as if he had bought a
Cessna or Piper.

Not true. It's actually very simple: Anyone can do anything to any
homebuilt, except sign off the annual condition inspection. That is
the only privilege conferred by the Repairman certificate. Someone
who doesn't hold the Repairman certificate for the particular plane in
question must have the annual condition inspection signed off by an
A&P. Any A&P will do; no IA required.

Ken