Redfisher,
Sadly all The guys I could call for a definite answer at OBMG have passed away. Robbie in Ladysmith has been with them for a lifetime, and Steve Sinclair is relatively new (10 years) but he was manager of northern operations. While the "fat boys" were unusual, the were built tough. About 15 (or so) years ago, OBMG had a surplus sale and those boats were the first to sell. They were either blue. (Like yours) or yellow. I think Rob Waters is where to start, great guy and ran PEDDAR Bay for years. He's highly respected in the OBMG and stepped up to hold things steady after Bob passed away. I haven't see Rob since last summer but I don't think he had any plans to retire.