There are always a bunch of custom built Sage rods on ebay. I just did a quick search and found this guy: CLICK HERE
If you click on his feedback, he's built a variety of Sage rods, and the prices seem fair if
the work is as good as it looks. He certainly has a large base of happy customers.
With a custom rod, I would want to know how long a builder's turnaround time is if you break a section. Sage might take a couple weeks, but you'll have to
trust a builder's word when he quotes you a repair schedule.