A few months ago I started this thread in the Suzuki GS Forum:
http://www.thegsresources.com/_forum/sh ... 686&page=4
This forum is different than most forums. Page 1 of the thread is the most recent post to the thread. The start of the thread is on the last page. You will find my post at the bottom of page 4. We ended up getting $800 for the 1981 GS 450T. We then bought a 2000 GZ 250 which is a much better bike for my 5'1" woman to learn on.