What would you build if limited to 372ci - with boost as an option

In the mean time, I spoke with a local race engine machine shop that is highly recommended. They can offset grind the crank if that becomes the plan. $350-400.

Now talk to be about rehardening the crank or nitriding. When does this come into effect, or is it any grinding beyond clean up??
For a street car, or drag car, I probably wouldn't bother.
For a salt car, I would assume you would have to do anything possible for durability sake.