Thanks for all the input, info, and help guys
I think I have it figured out. Going to keep the pre cats (planning to move out west, so just in case I want to keep it stock looking as much as possible), run an AR20 or AR25 resonator in place of the stock resonator, into the 94007 cat, stick a y pipe behind the cat, and run directly to the 12" glass packs. Cheapest and easiest way I can think of doing it, and easily modified later on for the down pipes. I do plan to gut the pre cat's though for the moment. I'll try and post some pics next week after I get it finished