For sale: We have a 43' custom tiny house "mansion" shell. If the house is purchased within the next week or so, you'll be able to choose the type and color of siding that you want. After that, the siding will be that of our choosing. The shell will also have one inch of foamboard insulation all around and on the roof as well, giving you a R-value of 5 before any insulation between the studs is added.
The trailer is a custom built TrailerMade gooseneck that has a 36' deck plus at 7' platform over the neck. It's sitting on triple 7,000 pound axles. The steel frame on the trailer is also a custom design, and was made by TrailerMade. Buying a shell, of course, allows you to build out the interior however you'd like, but if you're interested in what the intended floor plan is, I'd be happy to send it to you.