Sorry I made it to the thread late, Ryan. I looked back through my threads and found where I posted when I got the exhaust fabricated, but the picture is expired. I have the picture at home but it's on my external HD which has kicked the bucket
My setup looks just like turbogt's does though, his actually looks a tad bit cleaner. I remember sending him pictures and info about how I did it before he built his. It's pretty simple.
To go the route we went, you will need to cut a bit off your mid pipe, and either weld the mufflers on or fabricate a slip fit of some sort. You also will not be able to use any chambered/square style muffler, as there is just not enough space to do it. Trust me, I tried everything and the room is just not there unless you use a same side in/out muffler which is what I was wanting to get away from.
From your first list of mufflers, I would say the Powerflo's from SLP are probably going to be the mildest as far as volume. The race bullets are going to be a no-no, they are extremely loud.
I do have a thought though. You might be able to take an off road X (or H) and weld in a pair of the dynomax race bullets where cats would be on a catted pipe, then have the Powerflo's welded in where turbogt and I do. This would give you two mufflers on each side, but would not restrict flow like running a catted pipe would. The bullets are only slightly larger than their in/out diameters (probably 1" overall diameter larger, so 1/2" effectively for ground clearance) so I don't think you would have much problem as far as clearance under the car.