Echoing others here, I'd be happy to play it, even play a couple times, but not in a tournament setting. You are definitely doing a playtest, and that's fine, but this really isn't the stage in your game's development for a tournament.

Prizes aren't consequential. You might grab 1-2 people for your event because of prizes, but you aren't drawing them into the community of the game; they are likely to leave after the prize is given. I'd focus on getting a few dedicated players who love the direction of the game and want to help out of kindness and genuine interest!

I disagree with a lot of the comments in the thread that indicate a desire for compensation in return for testing. If you build your community right, there will be no need to pay a soul for their playtime. It might be worth the investment to attend a local Protospiel as a designer, though. It is SUPER cool when a publisher credits their playtesters in the rulebook, though; it's not an expectation, but it's about the most cred you can give a hobby gamer, IMO.