I have just checked in Danilo Cecchi's book and he says : "
... the KX came in a special version, with the base modified to take a motor and with the facility for using a data back. The modified KX motor drive version remained in the realm of intentions."
I'm puzzled as to what Cecchi is saying, as his two sentences seem to contradict each other. Is he saying that the MD version of the camera was made (as shown in the ebay pictures), but not the drive (which the ebay pictures do
not show - except in a picture on some paperwork)? The motor drive shown in the paperwork picture, and its pistol-grip, look very similar to that of the LX (but not like that of the K2 DMD, which had a hand grip on the right I believe)
It is worrying that the ebay advert does not show a picture of the MD, and it is not 100% clear that it is included in the sale (if such a drive even existed), although a "Motor Drive" box is shown, and if so whether it includes the probably separate pistol grip*. If it is, maybe the ebay one was a prototype. I would certainly get clarification from the seller beforehand if I were to bid.
From the ebay ad : "
This is an Pentax LX without the changeable viewfinders and screens, almost."
Makes a change from Pentax film cameras on ebay being described as "
Like a K1000"!
* I am guessing that the pistol grip / battery holder was the same for the K2 DMD, the LX and the KX. Can anyone confirm this?