Appreciate the help Brad. I'm probably a couple months away from actually starting on it, just purchasing bits to be ready. I'll still use one of the speedhut faces so it matches all of my other gauges, saves a bit of hassle there.
In other news, Shaun and I stopped in at JB hi-fi and picked up my new sound system components. I decided that the incredibly low sound power of the single 30 year old speaker wasn't enough anymore.
So the components are a 2 channel Kicker amp (2x 70W RMS) and a pair of Pioneer TSA6973E 6x9s (80W RMS).
As usual I'm not sure when I'll find the time to actually install these bad boys.
One question I have for you guys is this: We were unable to find a spare firewall hole to run the amp wiring through. I was thinking that I might be able to simply drill a hole (probably close to the back of the glovebox), seal it with paint and install an aftermarket rubber grommet bought from autobahn or supercheap. Does that sound reasonable? Any alternatives?