The first thing you need to know is that this is not a quick project. If you don't have a lot of patience for detailed time consuming work stop reading now, just enjoy the pictures.
For the purpose of these instructions the gauge panel assembly and pieces will be refered to as follows
Bezel: The aluminum trim ring that surrounds the part with the gauge openings.
Facia: The flat part with the gauge holes in it.
Hood: The stamped sheetmetal section that has 3 screws holes where the upper part of the assembly is screwed to the upper dash.
Panel: The Bezel, Facia, and hood attached to each other as an assembly
The first step is to remove the hood from the panel. This is accomplished by filing or grinding off the heads of the rivets holding it to the panel. Don't try drilling them out, it doesn't work well.
Once the hood is detached, remove the 2 screw clips on the bottom of the panel where the screws that come up from the bottom hold the panel in place when installed in the dash. Be very carefull not to bend or twist the bezel which might deform it enough to see from the front after reassembly. I find the clips are most easily removed using a dental pic and small pair of needlenose pliers. PUT THE TWO CLIPS SOMEWHERE YOU WILL NOT LOOSE THEM!