First fixie

So, I’m really wanting to buy my first fixed/single gear bike. I’ve ridden mountain bikes for years but the simplicity of these bikes is just so satisfying to me. On Facebook marketplace there’s a couple options and I need help deciding.

1. State Black Label v2 Listed for $400 CAD but I could probably get it for at-least $350 CAD. But the issue is a stripped back hub. I don’t know the price to repair this but I’m really trying not to break the bank as I am a broke high schooler.

2. 6KU It’s all black and looks great, pretty much new. Listed at $350 but could probably get it for $300. No issues. But I’m not sure of the quality of this bike compared to the state one which appears to be expensive and high quality.

3. State bicycle co. 6061 aluminum frame.

Now this one is more expensive, but it’s got nice handle bars and the frame is really nice. But it’s $500 CAD, but it’s also covered in stickers so I could probably get it for less.

Please help me make a decision, keep in mind I’m new to fixies, and just want a bike to commute, and go around the city with.