Yes, in fact I'm pretty sure he said he was planning to put the pink delica back into regular production. It'd be vg-10, so not totally rust-proof, but definitely an easy-to-maintain stainless steel.
You can dye yellow FRN pretty much any color. It will wear off over time, but it's an easy thing to repeat on a Salt knife.
It might take trial and error since it's not a white handle. The yellow may come through and make a florescent orange color. As someone stated before a blade swap with a pink native would work better. You can always go from a lighter handle to something darker but using a lighter dye it's more likely to tint the handle with the base color.