General questions as I tear my truck apart

[70ChevyChris]

I'm tearing my 70 K10 apart and creating the list of what needs to be replaced....

1. The wiring harness looks like a rats nest. Can anyone give me a picture of a fuse block?
Has anyone used the EZWiring harness? What are your comments on it?

2. Where does a stock washer reservoir go, mine is missing and they are in different locations in pics posted on other threads.

3. Where does the radiator overflow mount? I have a antifreeze bottle chicken wired to the grill.

4. The sticker on the glovebox door says my truck came with A/C and now it doesn't have it anymore and there is a patch over the firewall hole. Can anyone give me some good pics of how everything should look (locations of parts inside cab and engine compartment)?

Thanks in advance for any help you can give me!