sell your front and rear seats on ebay, sell whatever top you have on ebay, sell any body mods you installed on ebay. hopefully you then have enough for a new bigger engine. then, borrow a bucket, staple a couch cushion onto it, superglue onto floor, and there you go!
seat belts dont work to well without a back, lowes sells aftermarket 2X4s to screw into the back of the bucket.
how funny would that be