NGC or GPEC2?

In regards to by original question, here's a point ran across since I asked it.

The SSR module appears to be a must in most situations. And it is an unadvertised module that runs something like $250. In my mind, this makes a stock GPEC2 PCM a problem. Seems that no one has figured out how to turn that off in the PCM, at least as far as I have found. The only other option appears to be DIYHemi saying they can turn a GPEC2 PCM into a crate motor PCM which removes the requirement.