knightmare

Hello all,
OK here is the story. I have a 69 mustang, it is tore down to the shell ( reason was was to bead blast the shell bad paint job)upon doing so found lots of rust. in the process of repairing it with new sheet metal. I plan to use a mustang II front suspension( taking out the shock towers ect...) it had a auto tranny and plan to drop in a tru track 9'er. question is has anyone every had a mustang II front suspension installed if so , how did it work out and could any one recommend a tranny for me? what about extending the frame to make it more rigid .. and better handling idea's thanks for any info