Well, I don't know that I'd necessarily call mine a pro-touring or a g-machine, but it will combine some of those elements along with a vintage trans am vibe. I will be using with a stock style suspension and 15" wheels, which is definetly not pro-touring. Down the road I plan to add modern seating, efi, OD trans, a/c and maybe a few other luxery type items for the modern aspects. Maybe waaaay down the road, I'll consider the 17" rims and coil overs, but not any time soon.
Suspension design is under way at the moment. After doing roll center analysis, I've got the ride heights set up where they'll work the best. The next step is to pull it apart and put it back together with the right combo of parts. 1.22 torsion bars, 1.25 adjustable tubular sway bar, fiberglass leaf springs, adjustable rear sway (haven't decided on best size yet), and some really good shocks. I'm toying around with the idea of building floating leafs and using a panhard bar to adjust rear bite, but haven't decided on that yet.
My new wheels recently arrived, 15x10 and 15x8 Aero racing wheels, so changes to the pickup points to accomodate 12" rear and 10" front rubber will need to happen. At first glance it appears moving the rear shackels in a couple inches and rolling the edge of the fender lips may be the only moves necessary. But, just in case, I've got a B body rear housing that can be swapped in to gain a little extra room.
Unlike most pro-touring cars, I'm not going with big block power. I can annihilate my tires now with my small block, so bother with even more torque. I'm also planning on moving the engine back about 4-5" and dropping it 2.5-3 inches down, which, unfortunatly, is going to require some custom work to the engien mounts and headers to maintain ground clearence. That should also help considerably with the weight distribution while I work at lightening it up. At 3550# my Challenger is the heaviest mopar I own.
Lotsa potential in E bodies. They are great looking cars.