I used the Piers QuickSpool on my '03, and I'm pretty happy with it. I used the Colt Big Stick in my '97, and it has proven to really run well!! Boost went from 42 to 55. My '03 block split right through #15? cylinder head bolt, dumping water on #6 piston. You can imagine what else followed. I bored 'er . 020, ordered some pistons from Cummins, Mahle makes some goooooood ones, too. Also used the DDP 80hp nozzles on stock injectors, as that's what I had here. She runs VERY well..... no electronics, gets 18-24mph depending on external conditions and my right foot, and usually does around 15 medium loaded. I couldn't ask for much more. I might go back with the TST Powermax in the future, but right now I need 'er too much to work with, so no mods until I get the '93 finished.
For what it's worth, I think I paid $450 for the Colt cam and lifters from Peak Diesel. I'd suggest a call for their two bits, as well. Dave is who I usually talk to.....