There are some good points towards adding AC. I have to ask, back in the old days, if the AC wasn't consistently used, the seals would dry up and leak (our 04 PT Cruiser comes to mind here).

Are the new systems so much better that the compressor & hose seals won't deteriorate if the AC is only used a few times in a year? I understand that the AC functions when the defroster is also used, but it is entirely possible the defrost may not see action over the course of a year either, given his location and the fact that it is a hot rod.

Do we go through the expense and effort to install AC for a possible 1/2 dozen times during a year, and can we expect it will function for the 5 or 6 times next year, and the year after? Or are we installing it for the next guy (who may or may not want or use it), and it probably won't work for him either? Gene