I think that design with a triangulated chain could work - the key, as they note, is getting the attachment point for the baby stays in line with the tabernacle. I can't recall if the 23 has stanchions with attachments positioned appropriately. I would recommend using the jib halyard down to the end of the gin pole, and not an attachment on the mast much lower down as shown in the post - the 23 has a pretty tall mast. That means you have to remove the jib from the furler tube (if you have a furler), but I'd do that anyway when unstepping. Having the furled sail and drum attached when raising and lowering makes it awkward, and can torque or bend the swaged fitting at the top of the stay. I had a mishap where my helpers did not realize the furler drum on the deck jammed against a stanchion while we were sliding the mast forward to lay in the bow pulpit, and the furler tube bent causing a connecting piece to snap. Luckily I was able to undo the set screws and buy a new connector, but it was a PITA.