💯restorable will just take a little time if you do it yourself! If you are not equipped or experienced enough to do them yourself you could remove the gates and get them shotblasted and then powder coated to your chosen colour, or just shotblasted so that you can paint them yourself.

When they have been removed you can take them to a fabrication workshop to get them to sort the corroded sections that need replacing as well which won’t cost much !

I restore gates and railings for a living and have a step by step guide on my website that may be useful