
Gish..........
are you looking at doing all this work yourself????????
Believe me, a roof chop is nothing to be atttempted by the un-initiated.

There is quite a science to doing this, not just a matter of putting a few parts together.
If you really must do this to a '54 Chev cab, hunt around for a professional and renowned body shop to carry out the work.
Expensive, but not as much as finding another '54 cab in merry England!

Best of luck on the build..........Doc.