Maybe those would work better than the ones that came on our toyhauler. Like was mentioned they are very slow, and I also would go back to manual ones if these quit working. A good 1/2" cordless drill and manual stabilizers is a lot cheaper than another set of powered ones. And much faster.
If you do much looking around on this forum you'll find quite a few people that install something like the JT Strongarm braces along with their auto-level setup to help make their coach more solid. I think that moving the stabilizers further inboard would make add a bit more wiggle that if they were at the corners.