The AC system is 100% stock. I replaced the 27 year old rubber hoses when I replaced the compressor the last time. I took the hoses to a local AC shop and they used my ends and replaced the rubber parts. The evaporator was replaced when it developed a leak about 12 years ago. The accumulator gets replaced every time I open the system.
The fan clutch is probably due another replacement. After 20 years of driving it over 300,000 miles I can't blame the previous owner for much.
The AC has done this since I first got the car. It still has a better system than my 85 Carrera with 4 condensers. I just want a AC like my wife's 2008 Infinity. That is never going to happen.