I prefer the max potion dimension valley route, but this looks solid. I do suggest adding an odd prize attacker such fairy tapu lele to deal with cards like hoopa as well as giratina ex, also one shots ray gxs.
I find it strange that you don't play any copies of N considering you expect to be behind in prizes early game. Your list is pretty similar to mine though. A couple of cards I have really liked in here though are lusamine to get back dimension valley and a one of Wob PHF.