Clone of Trulia Voices or Yahoo Answers

We need to develop a Question / Answer website. The best example of what we need is <[login to view URL]> but Yahoo! Answers is very similar in nature, so either one would work. Please review it thouroughly(!) and post your bid along with an estimated time to complete this project. Please remember that we basically need a clone of either one of those sites so go through all the features before posting your bid. Also, please include samples of your recent development work.