Fred B . Dont be scared by that $900 grill . That guy is outta his mind & if anyone bids on that grill it will probably be one of his buddies. You should be able to get your 4 bars straightened & chromed for around $50 ea. As Kook said, mark all the parts for reassembly. Kook can correct me if I am wrong but, like the Chevies chrome was scarce on the 50,51 & 52 trucks because of the war. Most GMC grills I have seen from those years were painted light grey.