You won't get it for 10% down, need 70k as a minimum. 100k gets better rates, best rates & terms you will need 20%. So we are talking at least 15% down, at 580k price.
Rates vary, based on how much you put down, and if you are going to balloon mortgage it, and if you go with the broker or a credit union like Melrose or Bayridge.
Call a couple of brokers to find their deals. I used Keegan at Pearland.
Good Luck, Antolin