Little help with bag selection please.

[68GenIII]

I decided to go with bags in the front of my truck and probably the rear. I wanted to just do static drop BUT Ive installed a Cummins motor that weighs about 1200lbs. I want the truck as low as possible and figured by the time I found the right mix of static drop parts to get the truck where I want it, I could of bought some bags and schraders(not to many drop kits out there for people with Cummins motors). This will at least get me going in the right direction. The truck will not be running and driving for a good while, as of right now the bare frame is hanging from the rafters in my garage while the paint dries. I can piece the rest of the bag setup together while Im finishing the rest of the truck, so............My question is what bags would work the best underneath that big motor? Thanks again!!