In the nicest way possible I think you'd be lucky to get regfee back for this. You'll need to put alittle work in to get anything back out of this, imo.
Short brandables sometimes are snatched up for a goodly amount...it's just that the name has to appeal to thr right person at the right time....sometimes $xx, sometimes $xxxx....who knows....and welcome to NamePros.
I've seen some LLLLL.com sold for good amount. If you develop it I think it could worth more. Since you use it as your alias here with NP I would assume you'll develop it. As for now i would say low $xx.