I spent last weekend doing mine. The one I did a few years ago was definitely a short term effort. One thing I didn't do this time was clamp anything. It's either welded, or a flange union. I also gutted the downpipe pre-cat while I was at it. It took a boat load of time, but I saved a bit over paying someone to fit it.

Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com