Original longbed or cut shortbed?

[pat english]

I really like the "meet homer" build and i got pretty excited when i realized i have a dana 70 dually rear on the side of the house and 2 gmc tailgates.Im guna widen the bed 6 inches just like cooperhw did but ill widen it 3 inches on each side of the gmc.This all i have for now.I need some u bolts for this dually rear now and need to make or buy some shackle flips.Then ill have a roller and can start putting it back together.my plan is to get the chassis complete and working then put the body on.The truck barley fit in the garage as a stock 2wd so ill need to get the body on outside the garage in a weekend.