Another interesting detail spin on the P-51 is the fin filet or sans fin filet across the production run. And something rather new to me was the diff's in the wings at the wing root leading edge as relates to the wheel wells and such. Some subtle diffs there depending on model and year of production, more so between the A-36 and P-51 Mk's.
Btw, meant to ask..is this the Brodak kit or some other kit/plans variant? Can't wait to see your completed model.
T.