I found this information on fordmotorhistory.com about the Piquette plant/under inovations.
http://fordmotorhistory.com/factorie...nnovations.php
When they mention the incorporation of Ford Manufacturing Co., it goes on about the leverage buy out of Malcomson and several other investors. They set up engine production at the Bellevue Avenue building to build the Model N engines under a new shell company that didn't include Malcomson. The Model B and later K engines were left to the Dodge brothers to manufacture according to that. It is an interesting read.
Alex Malcomson went on to build the Aerocar plant next to the old Mack Avenue plant since he owned the coal yard there. It later became the first Hudson Motor Co plant.