Buying medium format cameras in New York ;)

I'm proceeding in the right order, first asking about buying film, and
now about cameras for shooting that film

I'd like to buy a Mamiya 6 or 7 body with some lenses (50/75mm for M6,
50/80mm or just 65mm for M7), and the availability in Europe isn't
that great right now. As I'm coming to New York the 6th of August,
maybe I'll have some luck buying my camera there. I've been checking
the web and so far the best deal in New York for used Mamiya 6/7
equipment that I've found is from Adorama.com - for example, $649 for
M6 body and $499 for the 75mm. Maybe I'll just go and pick it up as
soon as I arrive, and test it shooting some rolls and get them
developed quickly so I'll know it's actually working - I don't want to
spend 2 weeks by shooting black frames you know.

Are there other options I should consider? The stuff would have to be
available for pick-up the 7th of August at the latest.


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