I'll second Lee's suggestion of making your own throat plates. I make mine from some scrap oak I had in the stash. Just trace your existing plate, cut the shape out, and sand to fit. I planed mine to the exact thickness required, but you can go thinner and install little jack screws to adjust height. Just use dog point set screws. Another one in one end can be used to adjust length for a tight fit. It's so easy that I've made several to have dedicated zero clearance inserts for different blades, box joint cutters, and dados. They're reversible too, so you can have two sizes on one insert.
Sharp solves all manner of problems.