If you're gonna add an occassional elk into the mix I'd certainly take a look at the 300WM. If you are gonna just be shooting deer and black bears, the 7-08 is a very versatile cartridge if you can't find you a .308.
IMO, I would never buy a rifle and send it off to be "accurized" or "blue printed" of any of those other vague words without shooting it first. At least to get a base line to work from. If some high dollar smith lays hands on your rifle and sends it back and tells you "it's shooting .75" with tuned ammo". How do you know it wasn't doing that when it left your hands? See what I mean.
Also, if you want a custom rifle, I wouldn't buy a new rifle and then start replacing parts of it. I'd buy an action and then buy the components and have a smith put it together.
You understand, of course, that if you have a custom rifle made, there's no guarentee that it will shoot any better than a OTC box gun.