Parting out a power wheelchair for RC Lawn Mower

Video by BenjaminNelson via YouTube
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I’m taking an old power wheelchair apart to use the components to build a remote-control lawn mower!
I got the wheelchair for $25. It was in pretty poor condition, but everything on it worked!
From the wheel chair, I’m getting:
2 x 24V brushed DC motors with right-angle gearbox and wheel
600 pound max electric actuator (seat height adjuster)
2 x 12V 31AH lead gel batteries
24V charger and ammeter
80A circuit breaker
2 x large casters, already on a yoke
Dual motor controller with joystick input
Misc bits of steel and wires.

I had already taken a look if I could reuse the motor controller with joystick. Unfortunately, the way the joystick is built into the controller, there’s no easy way to tap into that circuit to add remote controls. I also took a look at the possibility of using servos and 3D-printing to make a device to mechanically control the joystick. Unfortunately, (after several attempts, I decided) my CAD and 3D printing skills just aren’t up to it!

I looks like most people who have built RC Lawn Mowers have been using dual-motor controls which are already designed with a remote control input. Essentially, the "correct part" already exists, and I should just buy one!
I ordered a Cytron SmartDrive Duo-30. It’s a good match for a pair of wheelchair motors. 80A peak, 30A continuous, per motor. https://amzn.to/4jTi1MT

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