If you have any freon in the unit ask a shop to vacuum it out for the freon.
With shop time running around $50 to $80 per hour it adds up quick. Where goggles when disconnecting the lines. I would install a new filter dryer and expansion valve. After it is installed you have to vacuum it down and recharge it. If it uses freon you can't buy it without a license. I noticed three different years you probably need r134. A parts store will have replacements for freon and r134. You will need a belt tool to remove the belt a 3/8 inch socket set and open end wrenchs. I think you will need jack stands and probably a day to do it. Watch removing brackets and lay it in line as you remove it.