Saw this place mentioned for new/used parts on another forum. Don't know but it may help someone, especially looking for older stuff.
RV Doctor George (http://www.rvdoctorgeorge.com/)
Keith
We live about an hour away. Down in Sac at least once a week so glad to take a look at an item for a member.
Pierce
Very cool,, sounds like a perfect resource!...... We live near Auburn in Foresthill, that's about an hour for us too
Great info. Makes me wonder if he might have some dual pane windows that would fit. Owner looks like a neat guy with a fine sense of humor.