As the title says, I'm in the UK with a UK Playstation and a UK copy of the game. I have a German Vita arriving in the new year that I will be using my US PSN+ account on.

I want to know if there's any way I can make this work. When I go to redeem the CrossBuy on the US account, it says that "this feature will be coming soon", which I know won't happen.

If I redeem it on my UK account, will I be able to sideload it onto the Vita while using my US account?

Probably not. As I understand it the game is locked to the account it is redeemed on.

Well, that shits.