Certainly that does not sound like normal tire wear. There is not much that is adjustable on the front of the WH chassis so if it is sitting that low it could affect the tire wear as well as give a very rough jolt if you hit a bump. As I said, if the coach is unloaded, imagine what it would look like when loaded for travel. I'm sure there is a serious spring problem which is not that difficult or expensive to fix. If you really like the coach, I would guess that you could get the springs fixed or replaced for $1500-$2000. Now if you could negotiate a $5000 discount....well.