I don't think I'd be comfortable trying to heat and bend them. I'd worry about weakening them leading to a failure.
I hadn't thought about having a new one made; it sounds like a pricey option, but like you said, you don't know unless you ask.
if you do decide to go for heating first cover them in soap, the bar type
heat gently and when the soap blackens remove the heat and try to bend. the soap blackening gives you a good indication of the metal getting warm enough to bend before it melts.