If you are reasonably adept at wiring you might be interested to see what i did with my 73 instrument cluster.
I use the oem.fuel gauge but made an electronic voltage regulator and calibrated it as described in another post.
I only use the illumination lights (which i replaced with led lights) l, turn signals brake warning and alt lights..
I use mechanical oil pressure and temp gauges.
Here is the link tk the post with pics of the rewiring of the instrument cluster.
You will need a wiring diagram and some colored wire. I found a package of 25 fr rolls of 11 different colors of wire onnamazonnfor about $16.
Connections.to the main.harnsee were made by making pigtales.and using multipin.conne
ctors as shown. The conne tors were from.a set i got on.amazon.as.w
ell and can supply a link.
https://www.fordpinto.com/general-help/1976-wagon-instrument-cluster-bulbs/Here is the post about what i did.. there is and explanation