He'll be more Palinite on foreign policy rather than a real neo-con (I advise you to find out more about the roots of the neoconservative movement, there were plenty of mildly interventionist Republicans well before the neo-cons/paleo-liberals switched over in the 1970s.)
So he'll be pro-Bush wars, anti-Obama wars (Libya, Uganda), anti Iran, anti foreign aid. He'll probably vote the same way as DeMint, Lee, Flake, Toomey, Bachmann, etc on foreign policy. A benefit of having Obama in power is conservatives being more anti-war, without doubt all of these guys would back any Romney war against any nation and Rand would be alone. The disadvantage of course, is the liberals being more pro-war, which is partially a reason for McCain's and Graham's new-found love for Democratic Senators. On domestic policy he's clearly with us, he understands Austrian economics and supports civil liberties.