What kind of equipment would I involve for a hot dog restaurant?
A nuclear powered bun-warmer!
I LOVE warm buns........for my hot dogs, I mean!
I can't say-so everything in this short forum, but think more or less everything you need for a hot dog: how will you cook it? What will you put on it--what container will those condiments come out of? How will people money you? Where will you store food when it first comes in? What will you do for paper products (napkins, straws, etc)?
I'd suggest contacting a full-service broker like Sysco or going to a restaurant supply store. Either should have a accurate selection for you.