but I know some are averse to using FB. But if you do, it's worth a try sending them a message via their page.
The website listed on the FB page, http://www.hydramodels.com/, doesn't load for me. Looks like it's based in China. I'm online right now through my company's firewall, and we probably are blocking it.
Sorry, that's all I can think of. I don't know what their email address might be.