Custom exhaust ideas

Looking for suggestions for a custom exhaust on my 74 Duster. I have Hedman headers, a Gear Vendors Overdrive, and my leaf springs have been moved in 3 inches. I plan to exit the exhaust behind the rear wheels below the rear quarters. I will have to go through the leafs, but I don't really have a choice. I know TTI makes a crossover for A bodies with a GV, but not sure if it will work with any headers other than theirs. I haven't called them yet. I don't really have to use a crossover, but it would probably be better than without. I have looked at the DIY kits from Summit, and the reviews were good, but they were for stock set-ups. One concern I have is that the passenger side header collector is quite close to the torsion bar mount. I don't think there would be room to turn in and come through the tunnel near the tranny. Not sure if other headers have the collector farther away. The drivers side has plenty of room. The Summit kit is set up for Hooker headers, but installers haven't had too many issues with other headers, just some trimming. I was considering buying the SS kit from Summit and having my local exhaust shop bend the tailpipes to exit where I want. They can't mandrel bend, otherwise I would have them make the whole exhaust. There is always the question of the exhaust note also.