I bought a wet lot out there 2 months ago. I paid $3100 that included 2 keys and all the osceola county county fees. I live close by and really do not need to camp out there. If you are a land owner you may access any trail or road. People do have trailers and camps out there. You can not build anything permanent. You can have up to 4 people on your deed which means you will get 4 keys to the gate.
Everyone I have come across out htere has been quite friendly. There is some trash on the ground in the old pavillion area. Some weekends it can be hard to find a spot to park in the pavillion area. If you have a 4x4 vehicle you can go towards the back and find plenty of places to park. There are people out there riding BIG 4x4's so you do have to pay close attention when riding.
It is pretty dry out there right now. I was out there last summer and there was a lot of water and mud to play on or around. I will be out there this weekend and I will get the number of the person who runs the association out there. They can give you prices on lots etc. Or you can drive out there if you want and get the number off of the gate. One other note about Suburban Etstates there are no facilities out there. The nearest bathroom is the citgo at 441 and us 192.