Stop a moment and think: I will make bold points, so that you can get clear information
1) Haselblad is a tripod camera
2) If you only want an 80mm lens, Rolleiflex is better in almost every respect.
3) If you buy it for longer lenses, you should get 501 c, c/m or 503 cw versions - the previous ones vignette in the VF with lenses over 100mm, and also the later versions have acute matte screen, which otherwise will set you back 200 USD.
4) The Compur lenses (C version) have unreliable shutters, that have to be repaired periodically, and the spare parts are running out
5) Make sure you buy the magazines with a warranty - they often have problems and a cla is as expensive as the magazine at times.
6) Two best buy lenses are Distagon 60 and Sonnar 150.
I disagree with you in every aspect.
1. I use it for sports and wildlife and most of the time handheld.
2. The 500c does not have a user interchangable focusing screen.
3. The 500cm has a user interchangable focusing screen.
4. The 501cm has the gliding mirror which means the mirror moves up and back clearing the rear element on longer lenses.
5. The 501cm was made slightly cheaper. Then the orginal 500c and 500cm
6. The el elm and such have automatic winders.
7. The most common lens setup are the 50 80 150. It was the old standard. The 80 is the standard lens for the hasselblad.
8. I shot the c lens are single coated ct* are multicoated.
9. The c and ct* lens are reliable but if they do need parts it might be harder to find parts for them.
10. Cf lenses are the next generation after ct* (what I use)
11. Hasselbalds are reliable but need a cla if not used for a long time or used hard.
12. The backs are reliable, never had one with a problem. But again a cla if not used for a long time or used hard.
13. They are expensive and once you start it's hard to stop
