Yeppers on Tecumseh being defunct, they were bought out in 2007, the factory Rep told me this morn, that the company that bought them out, is out sourcing a lot of the parts for Tecumseh. So some items can be had. I ordered a service manual today.
Rep was going to check on availability of over size piston and rings. Standard piston and rings are NA.
Again thanks guys.
PS. I'm not going to anything to this engine until I get the service manual.