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.
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.