Reference previous post on repairing a 1997 Nissan 3.5B HP 2-stroke, problems with lower unit.
"Plan B" is to consider buying off Craigslist, a 2006 Tohatsu model MFS 3.5A long shaft used on a Ericson 23 sailboat in the brackish waters of Pamlico Sound. Like new condition, I expect low numbers...