Interesting.. that's odd that I have not seen a 5MT cluster with a redline below 7k yet. I am sure one exists, but I haven't seen it.
In other news, I did find a solution to my dimming issue.. although it did require me to cut some of the cars harness. I am not really sure why the 030 worked perfectly fine, where the 090 would freak out the dimming control module. What I ended up doing was cutting the wires coming into the multifunction switch from the dimming control module, and connecting the Blue and Grey wires directly to each other to have the rest of the dashboard on "full bright". I have just twisted the wires together for now to make sure that it works, but I will solder and heat-shrink this connection in a bit.