After 3 years, I finally sent my Beaufort in to get waxed. While there are several companies that offer rewaxing,as seen here and here, I chose to send mine directly to Barbour. I chose Barbour due to the convenience of the Georgetown Barbour store and improved turnaround time due to Barbour's relatively new US operation.
Here is the finished product:
I also opted to have the "Barbour" embroidered left hand pocket flap replaced with a plain flap. I think it turned out pretty well and is reminiscent of my older Barbours.