I just installed PRC into Genesis Nordock, and I will be testing for bugs. This is a huge module, actually a server module, released this christmas by Niceduck and Ironfist.
I'm going to give it a run. The files merged, with the PRC module updater, and needed to overwrite quite a few files in the module, but it looks like it didn't touch any files in my hak folder(cep files especially-date wasn't modified).
http://nwvault.ign.com/View.php?view=Modules.Detail&id=6077

Also, Shadow's Quitus II, a Level 30+ module, which does use a hak(SQ2-V3.HAK), PRC merged successfully. Will be play testing.

Caereena-Krakona, a Level 20+ module, uses a couple tile haks, PRC merged successfully. Custom item are given to player based on original base classes. My first run was all PRC multi-class, no custom gear. I will try again using a NWN base class, plus PRC classes to see if custom item set is given.

I will continue to look for high level modules that work with PRC.
I also have CEP latest version 2.3 installed.

[b]Nordock is running PRC very well, although I had to edit & raise module xp level to 100%, as prc characters are way to strong at first. Nordock is set-up for a slow crafting type game, but I added crafted gear to a new shop, and some of my own(way to strong) gear. I am using it as a character build mod, and it is quite large. The xp is a bit much at times, but I wanted a quick level mod. I will be tweaking and editing my own version of Nordock 2010. I will be adding boss quests, crafted treasues, and some basic magic gear.[/b]

I am new here, and admittedly overwhelmed with all the new toys, but after a few glitches, I have managed to get everthing working. I downloaded some modules to test the CEP+PRC merge and successfully merged SQ2(Shadow's Quietus II), which is a 54 MB module. My CC created character loaded perfectly into the test mod. I also downloaded the Aielund Saga series, and will see if hakpaks conflict.
 I was really exited to find this site, as I am stuck with an old laptop at my apartment with no internet access. Now I can try to learn all this new stuff. Thank you to all the developers who keep NWN 1 alive and well.
And yes, I downloaded the manual. Damn, are you kidding me? That is an incredible amount of work.