Very happy to see there is at least a little interest in enclosed RV-12 trailers!
Hangars anywhere near where I am living are unobtainium and if found, cost more per month than my mortgage. A primary reason I chose the RV-12 was to trailer it (lots of other good reasons too).
I actually hope to travel cross-country (coast-to-coast) a few times with the RV-12
inside a trailer. I am looking at a maximum legal outside width in almost all states without permits of 102-inches or 8'-6." I have been working with three sales reps and there are at least two companies that can do a "production line buster" custom trailer with a minimum clear inside width including door/ramp of 98-inches - enough for the horizontal stabilizer without the optional tip fairings. They can do this and still have 4-inches plus or minus for the door frame and side walls and be "legal." The Kitplanes article I mentioned up near the top of this thread shows how it can be done. One price I got for a really nice all aluminum trailer was north of $31K.
I have generated some CAD drawings from the RV-12 "3-View" that show how it might fit and sloping the nose up/tail down looks like it could work with some wiggle room in a 7-foot high trailer. If anybody is serious about getting a trailer in the next 6 months maybe we could arrange a group buy?
Stuart Grant
2013 RV-12 - working on finish kit
Miami