Got an old electric wheelchair, need to move lots of stuff

So your grandma left you her old electric wheelchair and you are looking at moving.  Well take the two and build a robot.  The instructable does just this where the author modifies an old electric scooter/chair to move stuff around his shop remotely.  It reminds me of the way Amazon moves stuff around its warehouse….

http://www.instructables.com/id/Robo-Mover/?ALLSTEPS