JT Batchelder
Commonwealth Truck
My take on the commonwealth truck for passenger equipment with vestibules. The black technic 1x2 brick with two holes will be replaced with BMR/BTD wheel sets or you could use the Lego wheels with technic pins. The 3mm Hose is 10 studs long, though those are rather expensive, so I'd get an 11 and cut it down. in a pinch, you could also use 9 stud long hoses. The coupler is the 747Z variant from BMR.
Commonwealth Truck
My take on the commonwealth truck for passenger equipment with vestibules. The black technic 1x2 brick with two holes will be replaced with BMR/BTD wheel sets or you could use the Lego wheels with technic pins. The 3mm Hose is 10 studs long, though those are rather expensive, so I'd get an 11 and cut it down. in a pinch, you could also use 9 stud long hoses. The coupler is the 747Z variant from BMR.