Cam regrind?

Best thing to do in my opinion is send those pics to the regrinder you intend to do the work. Not sure how good it is, but cam lobes can be welded and reground. Probably a better idea to go to the junkyard and pull a good cam from a truck with a 5.9 mag. Price in my area is around $20 if you pull it. If you can't find one for less than $50 aleady pulled, you might juts consider buying a new cam. The price won't be much more and you will have more choices.