Unfortunately they’re out of business.Chorky- give these guys a look. I saw them advertise on Craig's List. They are eureka campers. I think they are out of Tennessee. They are welded aluminum frames and not subject to rot. I also believe they will be very durable. They are fairly simple in design and layout. I have seen several different configurations on CL, some used and some new. And they are considerably cheaper than a FWC. Im seeing pickup truck bed versions in the 6k range. If nothing else it's definitely worth 15 minutes out of your day to check out the website at https://www.eurekacamper.com/camper-models/slideinn-truck-camper/ I'm considering talking to them myself about building a camper to go on my 460 powered flatbed F-350. My job is horrible 10 months a year. On call 24/7, and out crazy weird hours. So I'm thinking taking a home with me would let me catch some rest whenever I can find it without having to go home, or squish up in the cab of the truck (I'm a big guy) Good luck with things! Please keep us posted.