The pulleys are my sticking point so far. I have a 24V motor, AXE controller, contactors, etc. Everything but the large cable and batteries (waiting on that until everything else is fit to the mower, so I know what batteries will fit).Forgot to mention, The electric motor fits the opening that was made for the ICE and it is a perfec fit. Drill the holes, mount the plate with bearing on the bottom then add pully for belts.
The motor I have has a stepped output shaft, 7/8" closest to the motor, just over 3/4 at the end. I finally found a pulley setup on Ebay that takes a keyed 7/8" shaft, and received it, but mounting it is the problem. I'm going to have to cut the end off the motor shaft (circlip slot near the tip), then drill and tap the shaft for a bolt.
I'm trying to figure out the best way to do that, as I do NOT want to have to disassemble the motor to tap it. I might try running the motor with a 12V battery, and using a cordless drill at low speed to center the hole (if I drill before cutting off the tip, I can use the centering divot to help). The other choice is to finally unbox my drillpress, but it's a small one, so might not have enough throat to handle the motor length. I need to figure out the smallest diameter bolt that I can use, that might be tricky.
After that, I'll have to fit a washer into the pulley shaft and weld it into place, as the keyed insert in the pulley setup just ends about 2" into the shaft, with no shoulder for a bolt.
This stupid pulley mod looks to be the most involved work of the entire conversion!
In your case, you might have it "easy" - since you have to add a shaft anyways, you can mod the shaft before installing it to the motor, and make it fit whatever pulley shaft you have (in my case, the mower used a 1" output shaft, so the pulleys that came on it would not work with my motor).