RE: Top Flite 1/7 P-51 Build
Adam,
Which retracts are you going to use?
I installed Centry Jet Models in mine and i am unable to go with the gear doors (the langing gear doesn't go into the wing far enough for the doors.) If i would have modified the mounting rail depth, i might have been able to add doors.
Make sure you strengthen the gear mounting rails good with extra supports (just in case you have some hard landings or if you fly off grass)
p.s. Also beef up the tail wheel mount