solid roller cam in a stroked Hemi would be the best power cam choice.
Aluminum heads (If you're going roller might as well go aluminum heads) Stage V
Roller Rockers
Aluminum Rocker stands
Roller Cam
Roller lifters
Block notched for push rods (based on lift)
Valve covers with extra clearance vs. OEM's
I haven't priced it all out what it would all end up being but 6-7 grand is a ballpark I'm thinking.