Hi, I have just obtained my very own GP14. Having had a good look over her today, there are a couple of little jobs need doing one of which is getting and fitting what I think is called a Jib Halyard Sheave. I have had a look online and can’t find anything that I think will fit in the hole in the mast. The length of the hole is approximately 70mm, the widest point is about 15mm and the narrowest point is about 10mm. As you can see there appears to be screw fittings left and right of the hole but the ones I have seen online are top and bottom screw fittings. Any advice would be really appreciated. Ste Lyon.