Manual trans swaps: Cheapest vs Easiest vs Best Performing vs Best Driving Experience

I fail to comprehend your statement.
Well, say you had a Mopar 4-gear, and 3.55s; and used 1.92 second gear for 3.5 mph; your engine rpm would be.......296. I can't think of any stock Mopar V8 that would run there, never mind a cammed up one.
So; I fail to comprehend your statement.