How are you gonna fit your kids in the back of a 14?
thats the line of questioning i have put to Vans, the baggage area is 36 to 40Inch long, so quite a lot bigger than a standard economy class pitch. capacity is 100Lbs, but is only limited by floor loading, not CoG calc. a floor can be strengthened,
as for not finishing, i have been a structures guy all my life, and have a full workshop at my disposal. and even staff if need by that want to help.