On Customs Union, he wants a seat with full say at the table for the UK. A form of consultations, possibly, but certainly no vote for a third country.
See my thread here: twitter.com/NvOndarza/stat…
It reads like a step below the EEA/Norway option. The EU-27 are certainly open for a deep free trade agreement, but anything closer would bring ECJ, free movement etc on the table. /4
There would certainly be difficult negotiations how to ensure this in practice, but this should ease negotiations
As I outlined in this paper, this would require full adoption of EU law in the respected areas, ECJ judgements, but no vote for the UK:
But he should know that some EU states constitutions restrict the EAW only to EU members, and as thir country UK will have to negotiate a different mode of access to EU databases
But: It rightly puts the focus on the political declaration, accepts the backstop and opens up a path - but with many risks for May and the EU27