rims????

Does anyone know where to get a nice set of 20's for the 2004 dodge trucks?? not the 1500 (which is 5 or 6 lug... dont know),but for the 2500 or 3500 which are 8 lug, and they have 40 of offset so they are incredibly hard to find some that dont bulge out of the wheel wells. But my dad has a 2004 with the cummins and its a 2500 2wd and has tried to find rims with no luck on a nice set of 20's soo just curious if anyone knows... thanks