If he can do it you can do it..... Eric O of South Main Auto identifies a Head Gasket Leak with a borescope. Perhaps a repair video to come.
Perhaps No repair unless ready to seriously spend. But there's a couple of ways to skin this cat I wouldn't repair I would swap out the assembly
He said he got the repair job. Was the this priuschatter asking about a place to get a head gasket fixed in Northern New York a few weeks ago?
Not sure but I know this guy works on Prii from time to time. He is in a small town but people do make appointments from many hours away. One of the few youtube mechanics who includes his wife and kids. He is pretty good with advanced diagnostics and tools but still gets real with tough rusted parts and difficult repairs from time to time.
