I think you have a really good shot based on those Graduate school grades - top 30 not out of the question.
At a glance:
- Your grad school results are very strong
- Your research ability and experience is strong
- Maths results are strong, though it would have been better to see analysis units
- Your GRE is probably right on the edge though, I know they discount applications after a certain cut-off and for some schools that's 165.
Keep in mind that I'm also going through the process now - but based on what I've read and the people I've talked to the above is pretty sound. Grain of salt as always!
If your grad school is willing to offer you a place in their PhD program then you're in a good position - take a couple of moon shots at Top 10 and see how it shakes out, if you have the resources.