Need help identifying wires.

[77K20]

I am in the process of putting the wire harness back in my 77 K20. I think I know where most of the wires go but...

1. Blue wire with a rubber end on it that would go over a single prong sensor of some sort.

2. Two wires coming out of the fire wall, green and light green, that go into the female end of a grey plug

3. What wires go on the fuseable link mounted on the firewall. There is one wire that has a two hole end on it that obviously goes there. Then I have another red wire that runs down to the starter that I have on the bigger of the two posts. What other wire(s) run to this link and which post do they connect too?

I will probably find more wires for you guys to identify for me, but this is all for now. Thanks for your help.

-Brandon