Hi, I got an HP 85032A calibration kit for a HP 8753B VNA but it has not such Kit in firmware.
It is a old kit, it was used in HP 8410b and other VNA of that times.
I'm used the 85032B coefficients as are the ones by default in my 8753B firmware, I thought maybe they just used the same parts. It looks worked very good, maybe I make other post with my findings.
Asked Keysight and they say doesn't have records of it.