Why would it be harder than any other equipment niche. People refurbish old boats, cars, and motorcyles and have fun doing it. There's an entire glossy magazine devoted to view cameras, more
than one web forum, a number of manufacturers still in the business, and plenty of living practitioners. It is less complicated than with smaller cameras because you can fix most things in
either a decent woodshop of machine shop. No redundant electronic fooishness to worry about either. Simple and elegant. Plenty of info out there for a patient collector too - used bookstores,
web info sites, simply asking for old catalogs etc to be copied ... I don't understand the frustration.