HELP with 32-foot box trailer

[6PAK72]

Brain trust:

Image 4 (my company) has a client who wants us to build out 2 mobile retail stores within 32-foot box trailers. We have always done this with client-provided trailers. This time, we are being asked to source the trailers.

Can anyone point me to a manufacturer or dealer in the greater Boston/Southern NH area who sells 32-foot box units?

Thank you again!