I bought the download from Lulu.com. I think I made a post on Friday about what I thought of the product description, or something. It's no longer posted (I swore I hit the submit button) and I'm very thankful for that--as I wrote it under the influence of alcohol.
Anyway, I think it's worth a shot for you to propose it to Chaosium. You obviously did a ton of research for the game and made a high quality product (in my opinion--whatever it's worth). You have a lot of interesting ideas for the game and I thinks it's a neat idea that all the characters live, work, etc. behind the Iron Curtain.
My only concern would be how Chaosium would react to the game system. You're essentially reinventing the wheel using creatures and a system that's extremely reminiscent of CoC. The only thing they would probably be interested in is the setting.