If originality is not the target, you can use the borgeson kit, relocate the pump from the bottom to the top with the mancini bracket kit.
Hardest part is the crankshaft poulie, hard to find in stock ratio. We made our own from billet aluminium.
Marco
Here's a dumb question... why would I need to modify anything with the crankshaft if the Borgeson kit and bracket just bolt on? Honestly wondering, I'm not much of a gearhead yet.