Sorry guys... been pretty busy. Got in a wreck a few days ago (RIP '99 Accord sedan), so I've been busy sorting that out and found a new daily driver in the process as well.
The catch cans are generic ones I got from Amazon for about $20 each, and I modified them by adding a longer perforated tube on one side of the can.
http://www.amazon.com/Godspeed-Unive.../dp/B00400XFQ2
As for the warped intake manifold, it turns out the old bolts were "stretched" over time by a few millimeters. Nissan revised the part and installation excluding the additional metal spacer in the sockets and resorted to shorter bolts. I got done installing the new intake manifold, but I'm still having some minor vacuum leak issues. I don't have an accurate torque wrench, and I don't want to risk snapping another bolt. So I'm going to take it to a shop to double check it with an inch-lb torque wrench, if possible. After that I'm pretty much giving up, but the car is running fine. More details and photos on my thread once I get everything done later this week.