I wanna drag race----help

Yes, I'll race it at the Nats or a Nostalgia gig, but I want to drive it. The transmission I'm building will be a seperate 4-speed from the slickshift one so that and the spool and 4.86s can be swapped in to race.
If I were you I'd get the yokes from a big block/727 C-body or wagon. Save a little cash. The shaft can come from nearly anything, truck, van, C-body, wagon ect. Just have one end cut and rebalance it. Mines 40 years old and doing fine. As long as you don't hammer the U-joints out all the time, it should last a long long time. I've got a complete back up shaft/yokes from a '69 Chrysler 300 that I parted out. Got a '69 440, 727, 8.75/489 case, shaft, yokes, radiator, air cleaner and fasteners for 100 bucks.