Auxiliary battery, cable routing

[kape]

Hello
My C30 engine swap from 454 to 6.5 diesel is so close to end. couple issues have to be done first, then i try to start engine.
Does anyone have pictures on the engine compartment cable routing. Just wondering how to battery cables are routed to ground ,battery positives together and to the start motor.. Well i know how to connect two battery to parallel. but i think some gm engineers are already solved best routes for cables.
I try to search on service manuals but did not find any information on aux battery cable routing.