[JRTJH]

If I remember correctly, this is the trailer that was dragged over boulders, through mudholes and around trees by a bull dozer to get it to the location where it was set up. That's my reasoning for going back to "ground zero" to be sure everything works as it should when it's supported by the axles/tires. If the frame is twisted and the slide sags/doors bind when it's "unstressed sitting level on the tires, it will take some "creative blocking" to overcome the physical bending (damage) that was done. If, however, the doors/slides work in a "unstressed level condition", it's just a blocking problem and should be OK once things are leveled out. Keep in mind that it will probably settle with time, rain and the movement of living in it, so you'll need to re-level or at least "reshim" the blocks from time to time.