I have sent a discount pricing request to both David LoPresti, and to one of their distributors, for sets of two and sets of three caps. I will keep you posted.
I also asked David whether LoPresti would be willing to have the Model 76 Duchess added to the STC list. I’m the guy who asked them to add the 19/23/24 three or four years ago (when Roy was still alive), when I found that they were absent from the approved list. They were quickly added, so I have hopes that the 76 will be included soon.
I still have not gotten my hands on a Skipper parts book. If you own a Skipper (or the parts book), please identify the wheel sizes of all three wheels. Thanks