Digital BW, The Print

I have a show coming up and I wanted to try something different. I am
creating my prints with a black frame around them. What I mean is I am
framing them via photoshop so that it is part of the print.

Now, I can either sign the back of the print or I can sign the front
of the print but it would have to be done in white, silver or gold to
be seen.

Has anyone here ever used these gold or silver inked pens on their
prints before? I'm using a standard epson inkset and Premium Glossy
Photo Paper on a 1280. (The bronzing on my 2200 is driving me nuts
even with the spray)

I'm concerned about bleeding or fading of the signature.

Any thoughts or suggestions?

Thanks,  Tim