I can't offer anything about Keystone, but I am following the FAA's civilian UAV rule making process. Expectations are for rules within the next few months (already years late).
The industry anticipates changes to UAV commercial operations regs. I wouldn't expect to see the industry flip overnight, but drones are very well suited for survey work.
My point is; I'd think twice about a lengthy training bond if that's part of the deal. Otherwise - good luck!