Ok first question, The outboard ailerons will work fine. For racing you don't need a lot of roll rate. In fact too much can and will get you into trouble in a hurry. I tend to run as little as possible to get a nice smooth line on the course and have to switch to a higher rate for landing. As far as the flaps are concerned, I can't imagine why they would have been needed. I would lock them up and cover over the hinge line.

Retracts, I have seen it once, a bay area guy fit trike retracts to his and powered it with an OS 91 VDF engine and ran a pipe through the canopy. IMO I would leave the gear alone. Get it flying and get over to Sam's for some practice. Two things will happen. If you ask you will get all the help you can handle and you will meet some of the best guys in the hobby. If you have not raced as of yet, getting that T-34 flying and practicing laps will help a ton. You will also want to practice air starts and get your start up and tuning process worked out so you can reliably do it in less then 2 minutes.