Ah, now you've kind of got me there. I would like to see an economic community of sovereign nations rather than a political union of the countries of Europe, so my mind is far from closed to the organs that permit the nations to trade freely together. But the CU is policed by the politically activist Court of Justice of the EU, which would place us into an unacceptable post-Brexit vasselage to the politically activist EC.
Unlike many or probably most people in either the remain or the brexit camps, I don't spend all my time reading only stuff that is monotone pro-Brexit and bias-confirmatory, so I swing around a bit, depending upon the apparent sense and logic of the commentary that I am reading. I am very suspicious of the ERG/hard Brexit activists, and would wish to see them answer clearly and unequivocally the very valid questions over their personal interests in a disruptive Brexit long before I put any firm faith in their assurances. But at the moment I would go for the big leap into MFN rather than accept almost any variation of Chequers that I can conceive of. I have throughout been liberal on immigration, though I believe that 'control' of immigration policy, however liberal, should reside with the sovereign nation.I feel absolutely confident that, given anyway the shifting sands on immigration, compromise can be found there. That apart, there are any number of potential varieties of Free Trade Arrangement that the UK/EU could devise between them, should either be properly willing, Canada plus offers much potential, as does EFTA/EEA, despite all also having drawbacks and disadvantages. So, in short, I am fairly open as long as we are properly insulated from overt EC meddling or influence in our lawmaking and political processes.