The owner of the company called me back this afternoon. Come to find out the reason his employee was having a hard time finding the chain was because they use a wholesaler for Oregon (RBI or something). Most of the big chain loops aren't "In stock" since they spin them to order. With that said, we were using the right number it just wasn't coming up "In Stock".
I told him to get me a 42", 3/8" pitch, 0.063 gauge bar and three loops of skip chisel chain. I didn't see the need in changing pitches just for a few times a year. I have to help a buddy out on a big oak when it cools off, so I will use it then as well. I just won't have to cut from both sides!
I want to thank everyone here that responded. That is what makes this site great.