Jack recommendations for small class C motorhome

I recently changed a blow out on our 21' C. What I have is an 8 ton bottle jack
which lifted the rear easily. I carry 2 pieces of 4 by 4's about 12" long for
under the bottle jack (side by side) which I did use and need. I also had with a 24" piece of 3/4" gas pipe for an extension on the factory lug wrench. With these tools the job wasn't nearly as bad as I had imagined. I would certainly do it again.
Brian (If you can do a car, you can do a C. But the darn tires are heavy.)