Welcome to the forum PapaM!
These guys are the best with their smoking knowledge, me well you'll figure that one out....something to do with mesquite!
The cat has got got ya going in the right direction, probably the easiest is to pick up a cart from wally world, kmart, or whatever store is in your neck of the woods! I snagged a heavy duty metal cart from work they were gonna throw away, problem was good ole west texas wind tried to launch my smoker solved that with a couple of drilled holes and some motorcycle tie down straps. Done some smokes in 60 mph wind without a problem, although not recommended!
Once again welcome and keep us posted!