You could buy a Leica M3 or M2 and use it with Leica Bargain lenses say a Summaron with the goggles on the M3 great and underrated lens. Voigtländer and Zeiss lenses can be used as substitute but they have a different look with the Summaron and some other bargain lenses you'll get the Leica signature look and quality. The Summarit for the M3 comes to mind as a cheap Leica made M lens saw one for 250 Euros at the Leicashop.

Dominik