I recently purchased a Keysight ecal for my Fieldfox from another forum member, so no longer need my very lightly-used Kirby 85033 VNA calibration kit. I paid 454.99 for the kit in 2016, it is in perfect condition and contains the full cal data on included USB drive, readily imported directly into the following HP or Agilent VNAs:
8510A, 8510B and 8510C
8752A, 8752B and 8752C
8753A, 8753B, 8753C, 8753D, 8753E, 8753ES, 8753ET
8719A, 8719B, 8719C, 8719D and 8719ES
8720A, 8720B, 8720C, 8720D and 8720ES
8722A, 8722B, 8722C, 8722D and 8720ES
The kit is complete and includes a male short, male open, female open, female short, female load, male load, female-female thru, male-male thru, serial-numbered measured attenuator, male-female adapter and RP male-female adapter.
Asking $300 plus shipping via paypal shipped anywhere on the blue planet.