Minimal platform for a 13' homemade yurt

[thebitmaster]

I'm living in Central Texas. I built a 13' (previously 16') camping yurt I've lived in for about 6 months in 4-6 week intervals. I was designed for west-coast camping, but I'm going to try living in it full time. I'd like to build a minimal platform to get it up away from the scorpions and rattlesnakes. I'm a fairly experienced carpenter and handyman, but haven't designed any load-bearing structures. I'm intending to use some kind of termite-proof adjustable footers for the foundation, and the yurt itself will provide protection from sun and rain, so I'm thinking I could get away with untreated scrap lumber. I really like recycling and scavenging. I'd also like it to be not too hard to disassemble and move, since it's likely I'll need to do that at least once or twice a year. I like the idea of SIPS, but probably am not willing to spend the money to get them. I may go with RMAX sandwiched between OSB instead. I'm looking for simply platform plans that aren't wildly over-engineered.