Taylor (et.al.),

 I have a first edition of Paine's 4 vol. (I have to gloat a LITTLE) that
 I got from an excellent used/rare/antique/out-of-print book dealer.  My
 husband and I have ordered numerous books from him.  His prices are
 reasonable, his books are in great condition, his service is speedy, and
 he's a nice man on top of everything!  He'll send you a list of something
 specific (like Twain) or a catalogue of a whole area (like philosophy).

 Klaus Grunewald
 Kansas City, MO