there is old technology called a telephone which can be used to communicate with other people verbally failing that there is newer technology called the internet which has something called email which can be used to send letters electronically to a recipient. you might want to try using one of these methods to contact SP Engineering and ask them if they could supply you with said baffle
failing that if you want to take a gamble i'm sure that one of the many universal ones you can find on ebay might do the trick.