npub18994crjwnldrukwym5lz3y2nae84s84v20m2rkngtjnyg549lr6qvxmd6m (npub1899…md6m) agreed on the friction.
It's not moving fast so if you can capitalize on a gear ratio and then small motors could move quite a bit.
If you drive the wheels that way and independently then there is also the possibility of cornering and you could then program it for the area you have to move it around. For smaller or larger spaces or around obstacles like trees.