Convert to 727 from 4sp. In 71 dart.

Console or column shift?
If you go with console you can keep your existing steering column. If you do console you obviously need the console, shifter and floor pan section.
You will also need transmission lines and a radiator with a trans cooler if yours does not already have one.
Im not sure but I think the 4spd and 727 tailshafts are the same so driveshaft should be the same.