The back glass on my civic dx is broken

and i can pick up another one at the junk yard for about 100
i was wondering on the procedure of removing the back glass and installing it any information would be helpful
i would also like to know about window tinting options and which one is preffered
finally i am looking a getting a new paint job and was wondering how i could prep my car to make it cost less(such as sanding and priming) and how to go about that
alot of question i know

any help would be appreciated