Kris,
I am not aware of a rod and piston kit from SHM that will fit the Duratech.
as far as their 4.6L kits, I don't have personal experience, but many people that I have talked to them are happy w/ the parts, but they are quite expensive (as are momst 4.6L internal parts)
yeah, i understand about the last thread getting all mixed up. I actually don't even remember a whole lot about the specifics of your planned setup. I just remember getting the feeling that your plan really wasn't sorted out, and you were using a bunch of mismatched parts. I don't mean to sound like a jerk w/ that either, just that's the feeling I got. I'll go back and look up the thread and see if i can remember some of the specifics, but in the meantime, how far along are you on this? Have you started buying parts? developing packaging for the turbo, etc.? Do you have a real plan for ensuring proper fuel delivery, besides just dumping a bunch of extra fuel through higher fuel pressure?
I will tell you, proper fuel can really make or break a forced induction setup. If you don't provide the proper amount of fuel, detonation will surely make for a pile of very expensive garbage.
Also, why in the world are you wanting to run a nitrous pre-spool???? If you think need to do that to decrease spool-up time, your turbo is horribly mis-sized, and will be a tuning nightmare to even get to run right on occasion.