Permathrin is awesome!
I’d use an herbicide on the weeds. Don’t bother with round-up, vinegar is cheaper.
I’d sow it with rye for sure. You can use Zoysia, there are benefits and drawbacks to it.
Good luck!
A researcher, hired by Monsanto, did a study, which concluded, Roundup was cheaper and more affective and safer
than vinegar. Study didn’t say if you would get increased HP or better MPG but there you go.