DUALLY LOWERING

i have a 94 chevy dually which i want to lower....ext cab.... but styling concepts sells a kit for 1g is it cheaper if i just piece it together....

How low? 454, 350, diesel? I can beat it.

Im lowering my 94 quad cab right now by flipping the rearend and a spring/spindle combo up front. The rear really doesnt cost anything to do if you can fabricate new axle perches.