Great choice !
While mine is not for sale,
I am involved with a bunch of other RV-10 builders past and present.If you can not find one to buy,give me a call and I can put you in touch with the other builders.
There is a whole bunch of builders on the East coast and a tribe of active builders on the West coast.
contact me at,
apmillerservices AT gmail DOT com
Cheers,