i did mine for pretty cheap, bike $10.00 (80's fuji), rear wheel $110 ( Surly custom built with Mavic rim, good spokes etc), cog $15, lockring $10, bullhorn bars from chucks bikes $10.00 chain $10.00. i dont think you can get cheaoer than that, i could have gotten a much cheaper rear wheel but the lbs messed up an original order for a suzue wheel for like 70 so they gave me the surly for 110, it is an excellent wheel though. i believe i was under 200 with a few asst ends like bmx size chainring bolts.