You might want to take a look at the edge insight system, despite you not having OBD11 there are options to take external power.
Its not cheap but is completely customizable in terms of what is displayed and it has extension interfaces for any generic sensor you wish to fit.
EGT etc. are available as stock sensors. Takes up less dash space too.
Just fitted one to my F250 diesel farm truck, to monitor EGT and fuel/oil pressure.
One of these days I will pull the Ultra-gauge from the D2 and maybe replace with another so I can get real rather than fake oil pressure as well as the OBD readings.