Find a well used Leica M6 and an older 50 Cron, and you might get lucky for 1000 Pounds Sterling. Sweet camera, built-in light meter. I did notice that you switched from Dollars in the first post to Pounds in your second post
Hehe, this is going above my head at this point. I am decidedly not a mind reader, although I have some amount of empathic ability which can however be used fully only in person, especially over a beer or three
For the OP: I think a logical first step in narrowing things down is to think about negative size and camera weight/bulk. Some of these cameras could easily be ruled out given an opinion on one of these.
