Am I missing something Rich? I thought the Customs Union had to be linked to free movement?
Customs Union gets you a frictionless customs border without free movement of people in exchange for budget contributions, ECJ jurisdiction, no say in setting the rules and no outside trade deals
EEA membership (Norway model) is in the single market but not in the customs union so you can do outside trade deals in exchange for free movement, budget contributions, no say in setting the rules, ECJ jurisdiction and a hard border
The only way to get any say in rules of trade (as I understand it) is to be an EU member state
Option 1 comes with the added bonus of seeing the look on Dr Fox's face