So it's been a bit since the last time I posted. I've made some progress on a few things.
I got the back half of the exhaust done. I went with Flomaster's Pro Series. The size of the case is the main reason I chose these. I was having some major clearance issues due to the blade anti-sway bar from Hotchkis. To ensure I wouldn't be hitting anything. I removed the springs and had the axle rest on the frame's bump stops.
Muffler back is all welded together. Muffler forward I will be using a mixture of clamps and welded seams. I do have it kind of dumped right after the axle with a little bit turn towards the back of the tire. I have room, and plenty of tubing to add more if it resonates a lot.