If you are looking for a true conservative with momentum then Mike Pence in 2008 is your answer.
http://www.rfcnet.org/news/default.asp?action=detail&article=283&category=18
I don't think Pence has the political muscle. A conservative member of the House that's not in any major leadership position will not get it done.
I still think Owens would be the best - although he may not run.