Kingsprit
A lot of older Catalinas have the same setup... I recently went with the Kingsprit by Land2c. I initially was worried about the looks if the thing, but the stainless matches the pulpit somewhat and I think it looks just fine. It looks like it belongs, anyway. Seems to work great and I didn't have to modify the existing cleats... the anchor even uses the existing little rollers to help support the anchor. I drilled holes in the shanks of both 33lb. and 44lb. Bruce anchors (I only bring one or the other, depending on the length of trip) to utilize the holding pin. This was definitely the best solution for me. For more info, try posting in the guest forum on ground tackle.Good luck!Trevor