Ok, so I don't know if there is anything around like this for first gen cars, but there are some around for second gen. I used a vast majority of the 2nd gen disassembly instructions from
Stealth316 to take it apart, but this one thing I could not get out. The plastic bracket to pull the speedo cable out. I didn't want to break it, so I searched and searched to get it out. I found nothing. Stealthify helped me with with information.

That little white thing. Like Stealthify said... Unbolt from firewall, pop clips and pull. Lift at the rear and push off main body and the main part will come off. The smaller round part will slide out the hole.

All this to pull the center guages out.

Center guage facings changed.

Dash back in...

Daytime shot...

A shot of them as a whole at night.

Close up of the cluster itself with the small brightness/contrast controller mounted to the bezel...

This is the whole reason I took the dash out was to change these 3 to match the cluster. The water temp needs to be adjusted, which means I have to take the dash back out again. >.<