Analog film photography and cameras

The main question though, is it a good or bad idea to trade a 5d mk1 with a 50/1.4 for a bessa r2 + lenses and a micro 4/3 body with m-mount adapter to still be able to snap away digitally?

will the 4/3 camera be utter shit compared to 5d?

Micro 4/3rds have tiny sensors, so a 50mm will be about 100mm equivalent on 35mm. The 1.4 would be a great help, though.

I use a Voigtländer 40/1.4 and it's the lens that lives on the camera. Very solid, sharp reliable piece of kit.