I need to replace one of the A/C hoses on a 93 SC2. The hose has a leak in it (it has since I got the car). The system was changed over to the new refrigerant previously, so I should be able to just get it charged up. How hard is it to change one of these hoses? And are they specific to the year? All of the local stores want - for the hose, but a junkyard by me has some newer Saturns (2000-2002) that I could get one off of if they will fit. Thanks, Igor