The bulkhead mounted compass on my Hunter 260 is not working and the clear cover is scratched. I need to replace it. I purchased a Ritchie SR-2 Venture but it would not fit in the cutout or in the bulkhead. The cut out appears to be about 4 inches and the space in the bulkhead looks to be 5 1/2 inches. Any recommendations for a compass that will fit? I was looking online as a Platimo Mini-Contest bulkhead mount but I'm not sure it will fit.