RE: advice on which trainer plane needed
Heck, welcome to the RC Hobby/Addiction. Hope you will have fun it it. Just my personal history here:
Sig Kadet LT 40
Sig Fazer
Dazzler
Sig Kadet LT 40 (2)
CG Ultimate 10-300, 60 size (99%built)
Uproar(still in box)
Stinson Reliant(still in box)
TF 1/5 P-51D Mustang (still in crate)
Until I perfect everything the Kadet can/will do, both good and bad, the Ultimate will sit in hanger. The Uproar and Stinson will be built and flown, and a low wing trainer will come into play somewhere and be extensively wrung out before the Stang takes its maiden. Just my two cents.