A small correction.

I scaled it down a bit.

I heard the P6W 610 F is not suited for supersonic flight. The original idea of Williams FJ22 or FJ33 could then be the other options.

Lotsa fluid dynamic testing etc would be needed.

http://en.wikipedia.org/wiki/Bede_BD-10

BD-10 run into severe problems as the initial testing showed severe problems in controllability at 350 kts and beyond.