Putting together a proposal for a customer including a sizeable patio and retaining wall. Everything is manufactured concrete, not stone. They are wanting an outdoor kitchen consisting of: Sink BBQ........charcoal, not a grill..........like something at a park Storage Think of 3 eqaul squares together. One is a flat prep surface, the other a sink and the other the charcoal. I've never built a kitchen and may just send this towards a buddy for that part but I figure if you can build a wall you can stack block with glue and form some boxes for a kitchen. I would prefer a masonry because I am more comfortable with that vs using man. concrete block etc. I assume a flagstone cap on the top.....simple enough. Then there is the charcoal area. Would a piece of steel be incorporated for the charcoal to be set on?? Gathering some info, thanks!