Those are the highlights from the last 3 or so years. Most are your more straightforward fuel lines + carb kit type stuff. I learned WAY more on the carnage ones that I did replacing fuel lines on Chinese Poulans, though.
That 245a, in particular, was fun. Someone on AS gave me the phone number to an old man in KY (I think? Maybe IN?) who sold me his last NOS 245a piston & rings. Price was probably what he sold them at for the last 20 years... considerably lower than what they go for on eBay (once in a blue moon when they show up there).
That 245 has surprised more than a couple guys with its power to weight ratio when I let them cut with it.