ORIGINAL: 1911fan
Guys, I meant to say that most of the ARF pics I have seen show a 3 bladed prop on the mustang.
A 3-bladed prop would look silly on the P-51D Mustang. Plus, you will be losing some speed. If you want speed, stick with a 2-blade prop. As for spinner, any 3.5" diameter parabolic spinner would work.