If Gioia Sails is the company, I wouldn't give up, ask for Don (owner and founder) or Dawn, his daughter. They me made a bimini with side curtains for my 400 over the winter 2018-2019. Don did the measurements on my boat himself and I am sure they have the patterns in the computer. They gave me 10% off since the work was done over the winter. I suspect the price would be better than having someone custom make everything which usually includes multiple trips to measure and install. If you can put it up yourself you can probably save. They re-used the existing factor-installed frame and it fits perfectly, high quality. They also made a Phifertex weather cloth that enclosed the aft flybridge so our dog wouldn't end up in the bay.