I'd be interested, but I am a bit short on cash for now. ~80 bucks sounds about right, but I would honestly prefer an AT keyboard.
They can get REALLY expensive if it's a PC or XT connector, as those weren't as common, and almost any keyboard that can be used on an IBM PC or PC/XT goes for a lot.
AT and PS/2 are electrically compatible. My KB-101, which is a rubber domed capacitive keyboard, has a DIN-5 connector with a switch for IBM PC, PC/XT, or PC/AT standards which use different methods for keyboard reset.