A couple things
Well, you'll have these really ugly holes if you ever change your mind...Structurally you should be OK BUT wood/sheet metal screws will not hold a very big load when set in thin fibreglass. If this is a PERMANENT installation you may want to screw-and-glue your teak plate using an epoxy glue.I had a similar solution to replace the fans in my 37.5. The new fans didn't have the same mounting hole spacing as the old fans. I made some round teak pads and mounted them with the old screw spacing using the original holes and then mounted the new fans to the teak. It worked fine and they haven't fallen out (yet).Jim"Prospect"