Try /r/Chefit. Because they get a lot of tourists, you might get better response if you actually give them some background on your personal situation and what type of cuisine and venue you are considering.
As far as creating a plan for your customer service philosophy, I recommend Danny Meier's <em>Setting the Table</em>. It's actually revolutionary. Every small business owner starting a foodservice operation should read this. I'm a chef and I'd love to start up a food truck or a small place, but before reading this i would have been focusing almost entirely on the food quality and the logistics of the venue itself. I would honestly have put little effort into developing a customer service strategy, because I would have just figured that would sort of fall into place naturally.