I set out my own thoughts here in @eastangliabylines.co.uk on how the UK could accede again to the EU internal market here without joining the EU (still not an easy option): eastangliabylines.co.uk/news/brexit/...
Customs union or single market: but is there a third way?
How could a Labour government opt for closer EU ties? We explain the customs union, internal market, and a third way combining these options
eastangliabylines.co.uk