Yeah,I believe it. I had two extra parts machines and used a few for myself and like you figured others would want them. I have had some to ask for a certain part but that was as far as it went. I did sell some of the parts but surprised that there wasn't a lot of activity.Seems like there are less and less people with 3813's anymore. A while back I posted a listing on this site and eBay for a collection of good 3813 engine parts that I wanted to move. I offered the parts for the shipping cost only. There were about $300.00 worth of parts for $15.00 delivered. Believe it of not, I did not get one response. In the end I wound up throwing them out. Times sure have changed!!!
Good luck with yours!