Finding fast glass for Lecia for under $100 is a once in a lifetime event, if ever. ......
I once found a Leica Elmar C 90mm and Leica Summacron C 40mm f2 in a faith based thrift shop for $7 each.
Robert,
Do not bother playing Lotto, your luck has been used up.
JB,
Speed is a real relative issue. After I added an M6 to my M4-P I went out in search of another set of lenses. Not that my 'Crons were bad, just wanted a carry on business trip set up. I ended up with a 35/3.5 and 90/4 both M mount leica lenses and I think I paid about $250 total for both. I found out that while speed is handy, it's not always a requirement.
If you want real speed, the Nikkor 85/2 is one of the best. Going down you can find several 2.8s in that range (Steinhill Munchen, Leica, Komura) that are fine. If you want light, fast and sharp look to a Nikkor 85/2 Black, will cost more than the Chrome but it's much lighter. Keep in mind that your camera's EBL is a bit short for shooting close up wide open with an 85/2.
I have to agree with Roland, the CV 35/1.7 is fine lens that has been pushed back into the shadows by some of it's newer brothers and sisters. Going down to f2.8ish range other other CV 35mms are fine as are the Nikkors.
Komura made some fine lenses years back, just need to ask all the usual questions about smoothness across the range for focus and f-stop.
DO NOT LOOK TO ANY FSU LENSES. If you really feel the need, please just send me the money and at least someone will be happy. There are some good examples of just about any FSU glass out there, but compared to the number built you would have a better chance at winning PowerBall this weekend by purchasing one ticket.
B2 (;->