Hello Friend,
I'm not from Austin, Texas, but I have a lot of experience mixing videos like this.
I have done the last 6 months editing and mixing sound for documentaries that are 1 hour long but are very similar to this video.
I am accustomed to doing jobs at the same time, and we have a good relationship with companies from the United Kingdom, Spain, Portugal, USA, for whom we work frequently.
I look forward to hearing from you about the project.