New to the site, there is a ton of good info here.

I'm looking to build a .308 bull barrel rifle. I was hoping that you guys could point me in the right direction for a barrel manufacturer. I would like to get the best accuracy possible for around $300 (+/- 50 bucks if its worth it).

Is it cheaper to get a prefit and assemble it myself as opposed to a blank and having a smith fit it?
I also do not want to wait 18 weeks so someone with a turnaround of about 8 weeks would be best

I am looking for a 24" bull barrel with 1" at the muzzle finished in black like the model 10 actions.

Thanks in advance.