For anything that is in the engine compartment (not the bumper or inner fender liner), you should REALLY take the time to read the project HOW-TO thread I authored over the summer. It is set by step and all parts and items are thoroughly documented.
the forum allows you to “bookmark” individual threads or posts for later reference.
I think if you comprehensively read my thread, about 98% of your questions will be answered. I completely took everything apart in the entire engine bay, headlights out, radiator out, etc. the only things I did not remove were the A/C condenser ahead of the radiator, the electric fans, and the engine block and heads. Everything. Yes, EVERYTHING else in the the entire engine compartment — from the base of the windshield to the radiator, was removed, cleaned, replaced if needed or refurbished, and then re-installed.
I think an hour of your time reading the thread and bookmarking or copying individual post numbers that explain things or answer your questions, would be time well spent.
Situations like yours are EXACTLY why I took the time (and I’m talking many many hours) not only photographing things, but writing up descriptions as to what I did, step by step, and then uploading everything in a logical fashion. Threads like mine are EXPRESSLY DESIGNED to assist folks like you and answer questions before they are asked.