According to Aaron Fude :
Thanks for the recommendations. To clarify, yes the floor was sanded
and poly-ed.

I was told by my floor refinisher that these floors would be to
brittle to take out of a closet and move to the area of interest.
Also, according to him, there's virtually no way of getting them out
of the floor without busting circular saw blades on the nails.
Finally, he's claim is that b/c it's tongue in groove, that these
boards are "used-up" and cannot be re-used.

Once you get an edge free, it's usually fairly easy to get flooring up
without doing too much damage to the boards. Depends on remaining
board thickness, wood condition and using the right pry bar/technique.

The trick is more getting the nails out or at least cut so they
don't interfere with re-installation without damaging the boards
that much.

Busting saw blades on nails? He's not heard of demolition blades?
Gee.

Chances are he's trying to hint it's not worth the expense of him
doing it.
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.