Maclab,
Bet you a DIME to a DONUT, you're waitin' fer a SMART ASSED answer, from me--LOL
IF they have TRAILER HITCHES, I have a FREE, HUGE, OOOLD Steamer Trunk, just put WHEELS & a HITCH on it & TOW IT!---LOL
Your Brother, Bill W.
I have the plans for building one out of wood that I found years ago. If you would like a copy, send e an email at jrelliott42@gmail.com and I will email you the plans.
Usually, cabriolet uses a straight back trunk while sedan uses curved back - but I suppose there's no reason either back can't be used on either body. FWIW: http://www.varcoinc.com/ - never bought from them but have heard good things from those who have. Not cheap but trunks are steel where some others are wood.