I am Adwords Certified (Search & Display), with extensive experience creating, managing & optimizing search campaigns. With this experience, obviously keyword research & extraction have played a major role in my successes.
I am a a Native English speaker in the US, so the ability to transcribe the videos, understanding of cultural norms, as well as communication with you about the project will be significantly better than the offshoring options.
If you are more comfortable with Milestone payment based upon tangible performance, to minimize risk, I would be happy and willing to work under that payment structure rather than hourly.
I assure you that my work will exceed your expectations!