There is no master line-art compilation that covers every possible combination of steering system, display, GPS, and vehicle. As mentioned, you can find line art for portions of the system on the public portal. 

There are some fairly complete line-art diagrams for the general installation of SteerCommand/Ontrac3 and the other Novariant Autofarm sourced steering systems on the dealer-only side. They include connections to battery, display, GPS, and steering controller with part numbers. I emailed you the most relevant diagrams. If anyone else would like them, shoot me an email.

When adapting Integra harnessing to InCommand, there is really no change other than using Legacy Display Adapter Cable 4004399 if the Integra display cable has Ethernet. If the Integra cable you have does not have Ethernet, a stand alone M12 to RJ45 Ethernet cable can be used with the Legacy Adapter to make an Ethernet connection between the display  and steering controller (PN 4004635-12).

If you post the model years of your machines and if they are factory steer ready, or have an aftermarket steering valve already installed, it would be far easier to get you the correct cabling guides and part numbers.