Purchasing Controllers @ Evo

I have a eightarc fusion sticks and i just bought one of those brook converters and i just can’t get it to update… so i will probably just have to buy a new stick.

Leaving for Evo tomorrow night and my pool is at 8AM on Friday. Are vendors selling joysticks going to be even setup to sell gear that early? Trying to see what my options are at this point… thanks for anyone that can answer.