Grounds?

[83swb]

I'm working on reassembling my truck, and over the course of 3 years I've forgot what grounds I need, and which ones go where. Not to mention wiring is rocket science to me.

The frame and harnesses are original for an 84 C10 (mildly hacked), but the cab and internals are from an unmolested 87' R20.

I know the basics, negative cable to block, tank sending unit strap, taillight grounds, and headlight/marker grounds. I vaguely remember there being a strap between the cab floor and the frame on the drivers side, but I can't find one on the 87' cab, should I run one?

Is there anything I'm looking over? I like pictures and schematics.