Probably worth a good bit, as vanity skins are still floating fairly high. Just sell it as a "Gold 15^50 Chaos Axe" and when someone msg's about the mods just say it has mods, though they're not good enough to bother raising the price for. Thats just my thoughts on the subject.
wow did't think these wen't for that much anymore =) Good to hear since i got one with the same base mods but with +29 Health Zealous. I htought they were going for 40k or so now.