Alrighty, here's the best description I can give of BC Supermod v3, for clairification. BC Supermod v3 contatains, in addidtion to many cool new ships and effects, its own version of Foundation. If you install anything, such as NFXv2, that overwrites CR's version of Foundation, you will encounter problems. Most likely the BSOD you are experiencing after installing NFXv2 is due to the Foundation rewrite in NFXv2. The ship plugin codes for BC Supermod do not work with NFXv2 installed. You will have to rewrite the ship plugins.
As for TCMP and other mods, I strongly suggest that you create a separate install, using KM 1.0 as a stable foundation to expand from.
As for KM installation instructions, there is a small .txt file called a ReadMe. It is titled as such because you are supposed to read it to understand how to use whatever you are using. I have checked the KM readme, and it does provide a very limited explaination on how to install it. To install KM, simply copy the folders, data, scripts, and sfx, into your BC location.
I still would like to see a console report to confirm my suspicions.