Is anything really going to produce a cup that is the same caliber as a single pourover?
I recently read Buzz-Killer Espressos blog and they made a great point in regard to this topic. They said obviously people who love great coffee will appreciate pourover much more because of process, appeal, and final taste. As I am sure you quickly find out after opening a shop, a large number of people are in your shop because of convenience / location and could care less about pourover / taste as much as they care about very quickly getting a cup of coffee so they can be on their way. For those people a compromise in the taste department is often more than made up for in the convenience department. The biggest thing with pot brewers is keeping them the parts that touch the coffee as it is being brewed very clean so you do not get the old coffee /stale taste. Are you going to offer pourover in addition to the auto brewer?
I know nothing about commercial brewers outside of the fact that Bunn, Curtis and Fetco make them. I bet if we all peruse our favorite shops websites we can quickly figure out which brands they use.
Edit: So much for that idea . . . I struggled to pick out any brewers / brands in any photos I found of shop interiors. I do know Buzz uses this Fetco though:
http://fetco.com/pl,product,24.html