Hole cut out in stainless table?

I have been having visions of my LBGE resting in a used stainless table/cabinet from a restaurant supply store. My 3 questions are:

1. How much did a shop charge to cut the hole?
2. Did they roll the edges of the hole, or finish it anyway?
3. Would I seal or gasket the hole-egg gap?

Thanks for any advice! I will try and post a picture the cabinet I'm interested in when I figure out how