I have an option to buy a nice used Gretag D200 II Densitometer and hope to find some users here with experience to share.
This D200 II does not come with any additional parts or manual so my questions are:

Is it possible to find a user manual for this model? A quick Google did not bring anything.
Are parts such as a UV filter, apertures and calibration card still available?

Any insight will be greatly appreciated.
Thanks.