I have found a 14,500 / month 'Exact' (local) match keyword and bought exact-match.*** domain for it. ExactMatch.*** was taken, but owner has no site on it. I have slapped up an 'Under Construction' page that has the main keywords as links back to the domain in it's body content. Is it worth me starting to build links now while I try and decide how to make the domain work to it's maximum potential?