your kitchen looks fine. IMO for the mess and hassle you'd have to go thru, it's not even worth it. If you're thinking about doing re-decoration or designing, do something that is more visible, like wall-paint or lighting or window treatment, furnitures, etc, etc. Sink is probably the last thing I would worry about.I've looked into this since getting my mild slap from Urbandreamer and apparently this sort of work is pretty common, but might be a bit messy. I'll let you know if I find any contractors who might be suitable, should I try to take on an upgrade.