Has anybody seen or swapped a Silverado 3500 Dually bed onto a Silverado 1500? I have a 99 long bed and have the chance to get a 04 dually bed cheap and want to do the swap. The main reason for this is to put monster tires under the bed but I do not know what rims will work. Will I need custom rims or will it be cheaper to swap in a different rear with 5 lugs so I have more rim choices? The truck will be 3"-4" static dropped as well.

Too many questions!!!

HELP!!!