If you don't find it, email Bryce at "cheap stihl saws parts" and he may either have one not yet listed or tell you which cylinder/piston set will work from a later model.
Thanks for all the help! I found a new ring and am going to start from there. While looking for parts I found an 041AV so I bought it to add to my collection, it even runs pretty well but needed a little work. Thanks again.