You had me at proportional representation, however I fear we are more likely to form the CANZUK. I doubt it would have proportional representation and we would probably still be stuck with the crown on our money. I was a fan of joining the EU just to get people off of our money but not their colouring scheme, proportional representation would be great.
I am most definitely not a fan of adopting the US money as some have suggested before because it all has dead white guys on their money.