Yeah basically this but where the concrete slab is shown, install whatever flooring system you want. All though I will say a concrete slab will last the longest.
I would dig it down a bit, put in some fresh gravel base and put foam panels over the top. Install a subfloor directly over the foam and flooring on that, with an access panel for the clean out.
My neighbor choosey trick each year. He lives at the top of hill with a long driveway and leaves out joke treats. I think it was a bucket of frozen fish this year
Happy birthday, your license plate is now expired 🖕