Seems like a reasonable deal
Unicomp Customizer 104 $60 + $15 shipping (to me) (http://cgi.ebay.com/Unicomp-Customizer-104-Buckling-Spring-Keyboard-/220814575967)
Seller info
Product Information
Manufacturer: Unicomp
Product Line: Customizer 104
Device Type: Buckling Spring Keyboard
Compatibility: Windows, Mac, Linux
Interface: USB 2.0
Color: Black/Grey
Up for sale is a used, but near mint condition Unicomp Customizer 104 Keyboard.
It has the buckling spring keys, the same patent used for the old IBM keyboards.
There's some lint under the keycaps but they are easy to clean by simply popping off the keys and applying compressed air.
All springs work perfectly, all labels on the key caps are perfect, and is in cosmetically great condition.
(http://i.ebayimg.com/00/$(KGrHqV,!jME3MOgFE7eBOIL,zilN!~~_12.JPG)