The
500 c/m is a great camera. I bought it when my Mamiya 7 was taking forever to be repaired and I figured after I got it back I'd sell the Blad, and it would be kind of a rental. But 2 years on, and I'm selling the Mamiya. The 500 c/m is a masterpiece.
I recently bought a
SWC 903 and I haven't picked up the 500 c/m or any of my other cameras since. Sure it's ultra wide, but it is so very sharp that cropping in post is available. And it is the essence of photography. No meter, no focusing screen. Everything has to be done mentally. I can't put it down. The greatest camera I've ever owned, without doubt.
MOST IMPORTANT: whatever you choose, it'll need maintenance sooner or later. Buying any film MF camera requires you to know whom you will be sending your camera to for, at a minimum, a CLA (cleaning, lubrication, adjustment). Based on my earlier experiences, I did things with the Blad in reverse order. I found a repairman I trusted and bought a Blad off him when one was available (
https://barnowlcameras.net/). Never regretted that for a moment. Find a repair person and then buy a camera you know he can repair accurately, quickly, and reasonably.