You may want to consider a serviced Pentacon P6. There are several places in Germany that service them, and can add a film wind indicator as an option (not really necessary if you follow the instructions on how to load the film properly).

You'll get access to a great range of affordable, good quality lenses, both both German (East and West) and Soviet. The 120mm f2.8 Carl Zeiss Jena is a really nice portrait lens, and not too big either. You could also grab a 50mm Flektogon.

The "safer" option would be to look for a Bronica SQ-A or the cheapre SQ-B. The bodies and lenses are affordable, and of decent quality.