Just picked up a navy chore coat for ~$100 shipped from Steadbrook. Never seen the price that low. Only Large left:
They have charcoal too but not sure about the size run.
NOTE: This is navy, which is slightly different from the Indigo coat as far as I know.
Yeah, it definitely doesn't take too much time to get it looking somewhat worn in. Probably not a huge deal either way, but I personally wouldn't try to manufacture the wear. You run the risk, however small, that you're not approximating what nature and a bit of time would do.