After wasting 3 weeks trying to get the new driveshaft built locally I ordered one from Tom Woods in Utah. The local guys just kept delaying and were not getting the job done.
I ordered from Sean at Tom Woods on Monday morning, the driveshaft was built and shipped Tuesday and I received it yesterday. I was really happy with the level of service I received and it ended up being cheaper than the local guys.
First drive last night. It's 100 times smoother and all the clunking and buzzing is now gone. There is still a slight vibration over 65mph but it could be related to the alignment or tire balance. Both of which I'll look into today or tomorrow.