Classic Auto Air Belt alignment fix

I called Classic Auto Air to order an Upgrade Kit. Had to call get put on hold for 40 minutes cause ordering from web site didn't work. Anyway, I asked can I get compressor with a single pulley since '69 only uses one pulley. She said no can't do that leave one groove empty. So yeah now I have to have a compressor with an unused groove. Sure ok I'll get over it let me get the thing working first then maybe circle back see what I can do to get a single groove clutch setup later. But I was able to get the optional extra cost black compressor so happy about that.

Then I go to fill out some form to get Evaporator Core reconditioned and they say booked forever nope. All the radiator shops around me closed so I prob flush mine and pressure test it. Someone on here bought a reproduction Evap Core said it don't fit could not use it.