Hi Norm,

I thought you already had an electric one https://www.outdoorking-forum.com.a...37/re-not-mower-but-outdoor-related.html

If your going up a steep set of stairs a small motor will move a great load but it's all in the gearing and that gearing may not be slow enough,
it just depends on the incline and surface you are using this on.

I made a ride on mower pull heavy loads with only 5 hp ,it will tow 600 lbs up a 15 degree dirt slope ,I had to reduce the engine
pulley size and increase the gearbox pulley size and it has a 5 speed gearbox.


Cheers
Max.