Hi Rijnko, I've just found this picture. Notice that the bomb sight is the 'course setting' type, which is taking up a LOT of room. the SABS , being bigger, would take up even more room, so perhaps the control was on the sidewall. But, if you look at the right hand side, to the right and on top of the 'V' shaped bracket, that looks very like a selector panel, don't you think?
My friend has had problems trying to convert the VHS tape to DVD, he thinks it his equipment at fault. Therefore, as soon as I can find a local place to do the conversion, I'll get it done. If it proves to have some useful evidence, it will probably be better if I send you a copy on CD, then you can study it at your leisure. I think you'll like it, as it includes 'Mosquito Airborne', plus a 'Yesterdays Witness' programme from 1974 about the 'Shell House' raid, and the actual film footage of the raid I was provided with to do the painting. But, you must not show the latter, or publish it, as it is under copyright.
BTW, your Spitfire cockpit is superb, it's the sort of thing i would like if I had the room for it!
Send me a PM with your address, e-mail etc, when you can, so that I can get the CD to you when it's done.
Regards, Terry.