Bimini here too
I had an Ameriseam made last year for my 1992 H23. They did a great job. If you have a split backstay, for some reason, it is not included in the original pattern they have. I had to call them, take additional measurements they asked for, and send it back. They added velcro/zippers to allow the split stay to go through. They were very fast and it is great. I can sail with it on and it stowes against the backstay. Good luck