Leitz Focomat V35 - Head Rear Cover

Hi all

I'm new here, returning to analog photography after a 25-year absence, via a brief affair with digital.

I have acquired a Leitz Focomat V35 enlarger for my new darkroom, which is complete and working (after I repaired the focus mechanism, which had been dismantled and then incorrectly reassembled) except that it is missing the rear cover of the enlarger head. This is the cover that has to be removed to access the bulb holder (but not the bulb holder itself, which I have). It is the part numbered 32 in http://www.bonavolta.ch/hobby/fr/photo/V35/v35_20.jpg (including the part labelled 31 which is just the fixing screw) and is rectangular in shape, with as far as I can see a circular recess/rebate that accomodates the bulb holder. It is necessary for proper light sealing.

I can't find a replacement on ebay, so I was hoping that someone who owns a Focomat might be able to take a detailed photograph or two, and add some dimensions, so I can get a replacement part made up. Alternatively, if anyone knows where I could purchase this part, I would be most grateful.

Many thanks
Andrew