To accomplish your goals, a forged crank and rods aren't going to buy you anything, the power will come from the heads, cam and pistons.
Considering the look of the car (which IMO is really cool) , I would build the engine with a HFT and use Rhoades lifters so the engine sounded like it had mechanical lifters. I would also consider running headers and have them coated black so they look period correct. Having grown up in the Era that car looks like it was built , I can't imagine watching the guy popping the hood and not seeing headers (unfortunately it probably would have had a Torker manifold also)
If you used your existing crank and rods, and went with a HFT cam you will save enough money to be able to have a competent shop set the heads and intake manifold up to achieve your goals.
However if it's in the budget go for a 4.5" crank, a hydraulic roller cam, port the heads and you should have a low eleven second pump gas SCREAMER!
