I am in the process of trying to source parts to redo the AC in my 82 MC. The engine has been changed to a SBC with the serpentine belt system. The AC condenser that I have has the lines on the passenger side. I basically need everything from this point. I have read a few posts on here pertaining to this kind of system but wanted to make sure I am looking at the correct parts. Below are some items that I have in my RockAuto cart waiting for me to order if they are correct. Also I have attached a pic showing my condenser location and the current hose that I have. I am not sure I can still use that hose so I have 2 in the cart just in case I need one of the others. Also I do not have the small line that is needed and no clue where to source one at. Any help/advice will be greatly appreciated. One other thing I noticed that some have a small black plastic ball under the hood that one or two lines connect. I do not have this ball, do I need it or can I do without it?