Cummins Wiring Interface

[PBO]

I'm an authentic Chevy Guy, I have two, a 52 (since 1970) and a 73 K20 Camper Special. However, I have a project in the works for which I need some help; I'm not a real "strong" electrical person. My project is a 1948 Dodge COE on a 1977 Dodge M500 motorhome chassis and powered by a 1996Cummins 5.9 diesel. The mechanicals are easy enough but I've got to start coming up with an electrical interface. The engine has the wiring harness for the stock engine/transmission interface; there is no wiring or gauges in the cab, I'm starting from scratch. I've searched both the "electrical" and "diesel conversions" forums and not found good clear information on how to tie this engine into aftermarket gauges and what additional gauges might be required; I have read several opinions about preferred harness manufacturers. I'd appreciate some solid info on what you guys that have done this conversion in you Chevys have done, Thanks in advance. Jim