You will find nice videos on YouTube made by him if you search for Soleil bleu le hard top and Soleil bleu annexe. This will give you some informations. When I met Riza last year on the Boatshow the solar arch with 600 Wp , complete with installation in Goecek TR was 6000 €.
I was thinking of adding an solararch, but decided to run the generator and keep the dinghy on the deck. I will add at the reling each side 150 wp solar panels .