Gerry,
Have you considered going to the MA RoadTrek dealer which would be Campers Inn in Raynham, MA and get a price on a ordered unit?
I would ask the dealer in FL if he would send you the RoadTrek Manufacturer's Suggested Retail Price (M.S.R.P.) bulletin on the RoadTrek that you are interested in.
Having the M.S.R.P. you know what to tell Campers Inn what you want in a ordered unit.
See the manager Brian Sullivan nice fellow see what he can do for you, if his price is more than the dealer in FL tell him about the unit in FL, maybe he will match it.
If you purchase the RoadTrek from the FL dealer they will charge you the MA State Tax which they will forward to MA, and I would believe they would give you a 30 day tag to operate the vehicle back to MA.
Ron