i would try to talk him into a C10 or ST too. even a early 90's vfr750 can be had in that price range and as a rider rather then a collector would be a better buy for the money. or even a nighhawk 750?
i put maybe 120 miles on a vf500f, short story, and i was not impressed by anything but the great sound. i would even go as far as to recommend a ninja or GS500 over one.
of course for collector purposes $2000 looks like a fair price, if it is that clean, if buying for use as a rider, you can get one that's not as clean with lower miles cheaper.
if he doesn't mind a little work and maybe a little risk this may be worth a look, if i had cash i would go check it out but since my money is elsewhere i may as well share:
no location but it looks like grand junction or montrose
there's also a few i saw in the denver area when i was looking earlier: