insist on meeting him, when you look at it, check for major gouges/cuts on the base, major indents in the railing, and check the bolt pattern for the bindings you are using.
other than that, its up to you man. personally, i would never spend over 150 bucks on used mid-range boards.
i have never ridden rome, so do not know to much about their style/quality. your best bet is to buy a used last season model... check out thehouse.com, they have tons of old stock for dirt cheap. look for anything that is your size, and a "true twin" shape, that eveness in the flex will help major with the park and riding switch.