Likely 383 swap-parts advice requested

I don't specifically have issue using a 200R4 in my car-just wondering what all else I need to buy/modify to make that setup work. I've read on a few different threads that floorpan mods were needed, then on others that no mods were needed to the floors. The obvious things I'd need would be:

transmission
adapter plate
modified starter
flywheel
torque converter
modified driveshaft
x-member
shifter
speedo cable

Depending on how long I take on this project, it may wind up getting one, it may not...