For what one pays for a crank like an aftermarket cast steel crank, they are a really good deal. Having said that, one must also realize that, fairly often, they may need to be turned to get them right. Even with the cost of having one turned, they are still a good deal. After all, it isn't a $1500 Callies piece. As far as where the balance holes are drilled, I wouldn't sweat that. I would find another shop, and have the rod journals turned to get rid of the questionable marks.
Eagle now has internally balanced cast steel 383 cranks. You must remember also that the Eagle cranks have a "target bobweight" built into them. The proper components will net you the correct bobweight to prevent the need for heavy metal. A competent shop that balances should be able to help you determine what your theoretical bobweight would be with your choice of components.