Ok, I'm doing a 12V and a 47RH conversion into a '95 Chevy K2500 and was wondering how I can run the engine and trans fully manual, IE. pull cable shutoff, manually controlled OD and TQ conv. Lock up, etc...

So, What is the least amount of wiring I can get away with while still trying to keep my speedo, tach, grid heater, Lift pump(or aux. pump, still unsure which I will use) and obviously the starter..