I had another look at the shaft I was going to have shortened. It has a good amount of pitting in it. I'm thinking it might be better to just have another shaft made. The same shop that quoted me the $200 for the shortening just priced me out a new custom length shaft. Their price was right at $490. That doesn't include a new slip yoke since I have one already.
I did find a company out of Wisconsin that advertises on E-bay. They list a new custom length Mopar shaft for $259 plus $50 shipping. That does not include a slip yoke but does include greasable u-joints and is supposed to be balanced. Thoughts?