import in a hiace or one of the other many japanese campervans. they are cheap in japan, but getting it here will be some money. will likely still come in well under what youd pay for any westy or smb. plus there small turbo diesels available.
we can legally import any vehicle older than 25 years old. and as long as it isnt a skyline, you could likely get in something newer too. just gotta be creative with titling...easy here in idaho (well used to be, havent messed with any jdm vehicles for 10+ years), not so easy elsewhere around the nation.
mazda, toyota, isuzu, mitsubishi, and im sure others all offer some kind of campervan. why we never got them on our shores is beyond me. if there would have been as many campervan choices for us here, i doubt the westys would command near the price they do now.
this is one i saw here a few weeks ago. its a toyota hiace. this particular one probably isnt garageable, but theres a LOT of different versions out there.