We did the same thing last year. We put the trailer on a seasonal site but wanted the ability to move it and use it during the summer. The blocks under the frame make it more stable (no spring bounce or rock) but would make it harder to move the trailer if you wanted to go on a trip because to set it up you need to jack up the frame,put the blocks under it and then let the frame come down on the blocks so the tires and springs are not supporting the trailer. What we did instead was we bought a set of screw jacks from Wallyworld (they come in a set of four for under 30 bucks). We use the Travel trailers tongue jack and corner jacks as you would at any campsite but then put the four screw jacks just ahead of and behind the axles and the result is a stable trailer that can be moved very easily. If you want to move the trailer occasionally, stay away from building a deck. We have a couple of rolls of astro turf (8'x10')that we got at Home Depot) under the awning to keep the patio area mud free.We also built a small platform(4'x4') with steps that make it much easier to get in and out of the trailer. The steps and platform are not anchored in the ground but sit on wood blocks and can be moved very easily and put back once you bring the trailer back. We leave them at the site for our occasional trips. Because our trailer was on site and set up all the time we were able to use it most every week end. We left it plugged in and the fridge on. On Friday afternoon when I got home from work we would just throw the suitcase, cooler, and dogs in the truck and in a hour and a half would be building building a campfire and having a cool one