One of my cutomers picked up this unit at an equipment auction, and wants it installed in a trailer.

Here's what I know:

Delco E5204
Ser 120-C-71

Voltage 208/240/416/480
Amps 156/136/76/68

Control unit was "chopped" off of the gen set - and I need to hook it up!

Where can I get info on older Delco large gen sets?

Thanks for your help