http://www.crossrv.com/
Basically, Cross can take your wheels/axles and build the trailer to your specs. There isn't much he can't take on. Just takes some phone calls to discuss, remembering he is just like most of the good shops--stays booked up well in advance.
Been there 3 times now with 2 Suites--biggest thing he did for me was to convert a TK3 (peninsula sink) to a CK3 (island sink). Could not tell it had been changed. Installed a stove oven where I did not have an oven.
Just have to give them a call and talk it over.
Do you ever travel to the Rio Grande Valley of Texas? Several carpet/flooring guys down there for reasonable rates.