here is a drawing of the hard top I am having made. Anodized big (up to 2.375 OD) aluminum pipe and fiberglass top. Will be covered with solar and maybe some solar over the davits. You could walk on it if you needed to.
Let me know what you think. I will put up pics when I get it. Way cheaper and stronger than using 1" stainless tubing and a bunch of stainless fittings.
Here is the top with davits. A reinforcement is added to the davit. Let me know what you think.
I don't recall seeing a hard top with davits built like this. Since solar is cheap now why put it over a canvas top because you can't fold it up then. Also the strength and simplicity of the davit mount is an advantage in my opinion, no need to mount to rail or transom.
When the canvas was shot on my Catalina 28 I replaced it with sheet PVC - a product called Komocel. The stainless bimini and dodger frame were in great shape so I used Harken SS straps and a bit of reinforcing.
Going on 3 years now without any problems. This year I added a second solar panel. This isn't anything to hang davits from but it has worked out better than canvas.,