Also, there is a move afoot for the FAA to change the weight limits for LSA, in which case the 150 (and even 172s and 182s) would qualify as LSA planes. If you love your plane, you might be able to keep it when this comes to pass.
See
https://generalaviationnews.com/2018/10/29/the-real-story-behind-the-proposed-changes-to-lsa/ and google LSA rule changes.
One question that would stand out to me if I were in the market is why a top overhaul so soon after a major overhaul (TO 360 hours after MOH). A list of avionics would also be important to me. If I wanted to keep my plane, I'd rather pay for a visit with him than try to sell a well cared for plane and buy something different.
You can find Dr. Chien at
http://www.aeromedicaldoc.com. He is extremely knowledgeable on aeromedical questions and well connected at the FAA to get difficult issues taken care of.
I had a C150G and loved it. It is a fun plane. I just needed more space so went to its bigger brethren.
