Budget? Well Im upside down in this bike as it is sooo....I have spent about 7 or 800 on it. Its a (06) Schwinn cruiser SSX and then I changed out a bunch of parts with some NOS Schwinn stuff. My pic is way too small to see some of the detail but it has alot of "I WANT" parts that Schwinn guys look for. Im a lil warped, I go way tooooo far on my projects,but heh, why not? The two rims (hoops only) are Sun Double wides,$160 for 2, the tires are Maxxis Holy Rollers,$70, but like they say "ya git what ya pay for". So ta answer your question, Not sure. Im thinkin when all said and done,$500 for engine kit, sprocket(36or40 tooth)HIPO pipe and a Hipo carb w/K&N performance filter. I can port and polish/ mill the head in my shop. and wiseco will make a piston for anythin. I just need to get the right kit for a good platform to build on. You guys know the good ones so please..........INPUT/DATA. Thanx