For Panhead and Pompey; There have been a couple of different threads posted on this mod. I am also in the process of doing the Dual Coils, but I went in the same direction as another member (Gas Man?). If you look closely at Shanes picture you'll see his motor mount and dual coil bracket are made up of 4 different pieces (the Big Dog frame mount, the Vulcan motor mount, a spacer, and the dual coil plate).
I purchased a Yankee Engineuity top motor mount (#680010 - $209.00) it's 2 pieces, the frame mount piece actually bolts to the motor mount, you just can't really tell, and a dual coil plate from Cheasapeak Performance (CM507 - solid plain front). If you go the route I have you will need to have your top motor mount milled (at least I did and so have others) for everything to line up and fit.
It's a very cool setup (both types), and a very good looking mod. Make sure you look up the other threads on the "search" before you make your decision.
Good Luck
