The M2 is a nice toy and you can get

a fast rewind crank (for Leica MP or 3rd party)
quick load spool (Leica or 3rd party)
grip if you have large hands (ditto)

a M4-2 is cheaper but ugly sister or even M4-P

I've used J12 (FSU) in a LTM adapter but a Cosina Voightlander 35mm f/2.5 in LTM (or M) is not much more and fast handling.

If you are in London our street markets are made for 400 ISO at /125 /5.6 and 2m prefocus. If someone complains mimic the chef from the Muppets.

Or a Canon P or Canon 7 cheaper still but still fast handling and quicker reloading.