It's interesting. Having met with Conqueror now in SA and looked into it more.
Theoretically the Conqueror Companion would pass all inspections. The build is more than up to scratch. However, when you look into the fine print on FMVSS there are some catches. eg. the brake lines have to have a DOT stamp on them, as do a few other parts. The Conqueror brake lines are technically DOT compliant but without that you are done for. The same applies to things like reflectors etc.
Another things to consider is the more it looks like and RV, wiring for power, water pumps etc the more issues you will have. So to import you need to import it as broken down as possible and add the water pump and some of the electrics after. That keeps it fully legal just makes the inspection easier.
The next trick is finding an RI Registered Importer who is not a grumpy old unhelpful soul who is willing to give you info and still work with you on it. It seems as though they are either "just drop it off and ill do everything and charge you and open ended number", which could be in the $10,000 mark or they are not really interested in the idea of having conqueror make it compliant them them just deal with paperwork and a final inspection and maybe a small correction or two.
It's a hard one, because there are some good trailers here, Adventure trailers included. I worked with Adventure Trailers on a custom Defender 110 storage build and would love to work with them again any day. But the Companion is literally the exact spec of what I want and there just is nothing quite the same here or easily modifiable to that.
oh well