you could use a universal one, probably not what you are talking about. they have those a pillar pod things too if they dont have one for your specific car you could get one similar and and trim it to fit

ive seen the gauge pillar at autozone i did like, but was thinking about doing a custom gauge cluster, with speed,temp,volt, trans temp, tach, all that cool stuff.

I hope all that cool stuff is mechanically driven. All of those fancy gauges need an OBD2 1996 or newer connection to the PCM. Which would be incompatible with your 1991.

yeah most if not all of them will be mechanically driven, its still a idea up in the air though.

Well, you might be able to rip out the whole cluster and do a complete custom cluster with all matching gauges, but that'* A LOT of custom work.

on a 91 it wouldnt be as hard as a obd2. im sure it has all the sensor inputs going to the dash on a vehicle that has those gauges, not like obd2 were everything goes to the pcm only. it would be a pain to find one that looked like it would fit right and work the same i think though.

or you talking custom aftermarket thing?

Custom aftermarket. Rip out the entire cluster, build a new one from scratch using regular gauges.

the only issue with that may be finding a place for your senders.

yeah, ill be taking it apart and start measuring and seeing how much room i have to work with.