Ok - I finally got a mobile and have it installed. I have a Yaesu FT-7800. Since it's my only radio other than my handheld, I wanted it where I could easily access it and bring it inside for when I want to operate from home. For now, I'm just using a magmount antenna (short enough so that I can still use my garage) so no details provided for that.
I checked out the spacing and the radio fits just perfectly in the open area below the center console. Because I want to be able to remove it easily, we simply used double-stick tape to affix the mounting bracket in that space (pretty tight fit even without the tape); we then placed a small piece of wood in the bracket (again with double stick tape) to raise the radio up a bit and provide better air flow.
I put the head unit in the space above the ashtray and below the gearshift.
The wiring is directly off the battery - we routed it past the brake fluid reservoir, along the stablilzer bar, and through the firewall on the drivers side. There is a rubber gasket with a large group of wires going through at this point, we simply cut another hole through the gasket and threaded the wiring through here. The wires are then tucked under the dash area and come out just next to the center console. There is a cluster of wires just about where the wires come out at the center console, we used these to secure the wires using tie-bands.
Note: "We" above essentially refers to my good friend, W0DSV, who did the installation for me
A few pictures:
Wiring across the stablizer bar:
Through the Firewall: