Hi folks I'm a nob in so much as I dont know anything about the vanagons. I'm wondering is there any real differance? Can one go in the other? I talking air cooled here. and I know it would be a major pain(or so I'm told) to do the subaru convertion to a bay window bus. So thats were I'm knda lost. Is it the way the frame is set up or what? Hope you guys can help from what I've read so far this is a great comunity. Thanks.