You can always run a tablet in the center stack like what Malcolm does. I have the same issue with the tach, so I use my Perfect Tuning Gauge as a shift light. Though I'm thinking of getting one of those sequential shift lights to mount more in my line of sight.Big 3 racing right down the street from me offer a gateway adapter to make a Holley system plug and play. It's not cheap but it will enable true plug and play which keeps the stock cluster / wiring intact, without having to rewire / have a harness made.
Whats funny is I decided to go MS3 to keep the stock gauge intact, and wiring to a minimum, but now that everything is done and I'm enjoying the car I think to myself having a digital dash that you can tune from would be really nice.
Usually if I want to check something I either log with my phone or just pull the logs from the SD card when I get home and look things over.