whole suspension work
#5
LCAs? Really? No if you have a fully built suspension you might look into these but not until everything else is done. How much are you trying to drop? An inch or inch and a half and you don't need a camber kit. More than that and you might look into getting one.
#6
If you have spring compressors. Or you are near an autozone where you can rent them its not too difficult. I did it my first time when I was 16 with little automotive experience. If you are good with hand tools you should be able to get it done. Air tools are very helpful though.
#8
If the drop is under 1.5" you don't need a camber kit. LCAs are a waste of money...just a shiny item that's nice to look at from the rear and attract cops. You can do it yourself, just take your time. It is possible to change the springs on a civic without a spring compressor, but I'd not recommend doing it if you don't know what you're doing. Autozone lends them for basically free (you need to leave a deposit).
#10
You will want a camber kit... both front and rear is desirable, but front usually gets omitted because of the higher price. I think Skunk2 front camber kit is something along the lines of $200. Haven't checked in a while.