It also has the heat sink for $37 which you will need with the higher amps or you can fabricate oneThis one comes up almost every time I do a search:
KBMD-240D (9370) DC Drives, Nema 1
It's about $150. For another $67 you can get a fwd/brake/rev switch. The plug-in HP resistor (#9850) is a whopping $1.50.
I may have to see what the shaft size is on the DC motor and what's going to be involved in mounting it.
The factory one bolts on the back of the unit
If you get one with fwd rev cover the switch with something that you have to reach around to switch it
Follow the instalation instructions with proper fuses (if not supplied on the unit)
The adjustment pot adjustments are fairly simple but be careful with the max torque one go only
as high as necessary
I set up one and had the torqe at max and the speed at max and the controller failed
Could have been a bad unit was brand new
The reason I cover the switch once I switched it by mistake and blew the fuse