Kiev might be a job but I think there is plenty of info out there about it and the Contax ii. Good luck with the haze, I'd go for lighter fluid and methanol, failing that it could be fungal and hopefully not etched.
I'm going to have a go at cutting down a mirror to size for the Minolta RF. A new one from nobbysparrow on ebay is about US$25 which is a bit stiff for a ten quid camera. I also still need to solve the wobbly barrel on my Olympus S, I was wondering how to get the leatherette off. It has a Copal shutter like a Canonet, and the skin goes right under the focus ring, like a wall to wall carpet, but it looks like to get the focus ring off you have to remove the mounting plate, which screws on underneath the skin. I don't know how they get it on there. I did spot a pic the other day though, a Canonet I think, where someone had peeled the skin back, not from the lens but from the sides, leaving it attached to the main shutter mounting plate. Genius! Second picture:
http://www.petervis.com/Cameras/cano...sassembly.html
I think once the plate is off I can see what's going on, I've tried everything I can without doing so.