BoulderZ

Just a quick drive-by, I know I haven't posted in quite a while. I've been enjoying the Z, when the weather allows, having some fun times at the track (see attached pic).
I need to put in some new (brass) shifter bushings and new front seal and gasket on my transmission this weekend, and it's supposed to be over 100 degrees out. That's warm by CO standards, anyway.

It got me thinking I should also finish the a/c. I put in a new receiver/dryer, and then discovered my high pressure switch is apparently bad when it didn't cut off the compressor, overpressurizing the condenser and rupturing it with a spectacular cloud of refrigerant. Oops. New condenser, and I closed the system and pulled a vacuum, which it holds. But I still need to find a new pressure switch.

Does anyone have a compatible part source/number for an a/c high pressure switch for a '78 280Z? Online/mail order, or Napa/generic part number, or whatever is fine. Obviously, I'm not in a hurry.

thanks in advance,
Dave