$1000 a week after all expenses consistently? I would disappear and not tell anyone about that. $52,000 a year in a van after expenses. That's pretty darn good.
Most good line-x or rhino liner shops could probably do the job. A lot of them spray things other than Bed liners often so they can handle this as well.
I've wondered about AA. We are looking into western star trucks and AA seems to have done a lot of sleepers on them. Just not nearly as much talk about them as there is on bolt, ari and ict.
The old kw's were both the short 72" and the bigger 86". U may have seen the little one. Panther got a mix of little and large sleepers. Fedex got all big sleepers. Now they are updating to 72" cascadia's which are much larger than the kW 72".