Hi,STEVEOLBOY! Welcome to the "'Bolt"!There are several vendors that supply complete engine rebuild kits,for the 235,and 261. Most of the same vendors offer virtually everything from wiring harnesses,(engine,dash,front lights the same as the smaller "cousins"),but you may need splice/add more wire for your rear brake,turn,and tail lights,depending on your frame/box length. Virtually everything ,from glass,to floor mats,are available for the cab. The 20" rims that you mention,should be 3-piece,and not the dreaded Firestone RH5's. Most auto tire shops won't touch any split rim,but ,(like "aggie jon" points out),semi-truck tire shops have no problem with the 3-piece rims, as long as they don't have stress cracks,or rusted thin. A good source for brake parts is N.A.P.A.,if you can find a parts guy willing to research the books. Good Luck,and Hope this helps.
