If UK want EU market access they will have to pay for it, Norway pays more then a membership fee and its per capita so could be pricey, only thing is that EU want UK market access too so maybe its a golden opportunity. Think EUs attitude will be a painful swift exit to mark an example what happens if more countries think about leaving. Think its absurd that some bank institutions already has plans to move jobs from the financial centres abroad, using brexit as a scapegoat to lower cost.
Agree with everything you have said - our saving grace may be that EU states still need and want access to the UK market going forward. We could be in a position of strength when re-negotiating trade deals, then again we may not be or it may be a balance. It's difficult to tell at this moment in time.
Personally I think we have a great opportunity to take more control of our destiny as a United Kingdom, however I just hope it's not at our own peril (which personally I don't think it will be). No matter what has happened and which way you voted, we can all agree its a great thing to be part of, and even greater that our society allows the people to control our own destiny and elect our own leaders... not many places in the world can say that! let's just hope we don't have a re-run as it kind of defeats my previous point!