All good ideas. Actually theres only 3 jack points. One on one side in the middle and two on the other. However the lady i got it from had extra jacks and I put them under the side that only has 1 jack just for piece of mind. I also plan on building some heavy duty saw horses out of 4x4 posts.
I agree that just with a little work, it would look a LOT better on the inside. The only 2 reasons I would want to gut everything and rebuild would be to 1. Re insulate, and 2. re do all wiring, who knows where mice have chewed through, etc.