I’m no expert but I think this is stunning!!

I think it depends on the overall look you'd like. For a cleaner or minimalist look, and for those flat panels, no molding or a flat, or possibly cove, molding may be suitable. I didn't like mine without the molding, but it's an old house and a traditional kitchen. Plus I didn't want to deal with any dust (and pet hair!) accruing up there. reno in progress pics

I agree that it’d be cramped. You could try a freestanding table or island to test the concept. The stainless prep tables from restaurant supplies come in many sizes and are not very expensive.

Like the idea of installing rough in plumbing and electrical below/behind the cabinet/countertop in case you want a full kitchen later. Would go ahead and add a deep stainless steel sink, even if only a single bar sink -- now ... and add a faucet with a high arc. Then a dishwasher and /or ice maker could be added later using the same supply and drain if you wish. Just space the pipes and wiring with potential future changes in mind -- and do be sure you are very clear when you hire your plumber and electrician in explaining what you want. Meantime, one of the larger toaster ovens likely could cook/heat a half pizza. There are single and double burner cook tops you could keep on hand as needed as well. ONE CAVEAT AS TO STOVE: An actual electric range requires special wiring -- not just a standard outlet used by countertop appliances. Know what wire to add and do so now (I would) OR, depending upon close proximity to your breaker box ... you may need to add plumbing pipes through which you can push the wire in order to get the heavier wire from the breaker box to a future stove location.