Shouldn't be an issue for screens, just an ink change. Finding the correct metallic gold would be the hardest part. As long as they get a good sample to work from, should be just a matter of mixing the right color, if it's not already a standard Pantone color.
I know it's a longshot because of licensing issues, but I'd still like to push for a premium full color option, like I designed for myself a while ago:
It's five colors instead of two so it might be a bit more expensive, but if people can spend $100+ on fancy pencil sharpeners for their TAF, I think they can pony up a few more bucks for the way I think B/W would've done it if they had the time.