...and we thank you for your efforts, David!
Sadly, with the advent of inexpensive ARFs, building is becoming a lost art. There are very few kit manufacturers anywhere on the planet and especially all balsa kits. Quality balsa (contest grade) has become more difficult and expensive to obtain and kit cutting is either very labor intensive (if done by hand) or requires some expensive hardware (laser cutter). Well engineered laser cut kits are just about self aligning and very easy to build. I have found a few wood pattern kits available in Europe and Japan. The quality is outstanding, but the price is comparable to currently available ARFs (typically built in China). These kits are produced 'on demand'; you pay, then the kit is manufactured; so usually 6-10 weeks wait. The classic Japanese kit manufacturers (MK, Yoshioka, Marutaka) have all ceased kit production or have gone out of business.
The price of the Bluejay kits is very reasonable and I suspect not exceptionally profitable. As a point of comparison, the Eureka Blue Angel kit (complete less plans) is $240 which I think is still quite reasonable.
Of course there's always eBay