I only plan on being in my current home for about 3-4 more years, so I don't think I want to install a concrete pad. I am looking for some cost effective alternatives.
Go to Tractor supply or any other local farm supply store neat your and buy
"horse stall mats". They are thick and rigid. Will eliminate your RV from sinking into the ground also.
No zoning permit required for them. They are removable. Either leave them there for the next owner or pick them up and throw some grass seed down when you decide to put your house up for sale.
I have used horse stall mats for years for parking the MH on. And then added a few more under the awning for when guests came over that stayed in the MH. Far more less expensive than a concrete pad!
Stay away from horse mat specialty stores they are way over priced. And don't buy the interlocking ones. Just the flat rectangular and/or square hard rubber ones. Some have a diamond pattern on the some are just plain.
It's also what is used on the floor of many big gym's! :W