Sounds like this boat was made before the acquisition of the Mariah name. Mariah Boats is no longer built at the same facility as Sea Fox. The Mariah brand was sold to a Canadian Boat MFG that went into financial difficulty. We have no records for the Mariah Boats that were built here nor do we have records for the older Mariah brand built in IL. I would try www.mariahownersclub.com or www.boatoutfitters.com