Have you looked at "short kits" vendors like:
The Balsa Workbench, The Balsa Workbench | Helpful hints for building balsa RC airplanes, by Rob Reynolds
Eureka Aircraft, Eureka Aircraft Company
Laser Design Services, Laser Design Services
Lazer Works, Lazer Works - Engraving & Design

These companies sell parts of the aircraft that I don't want to saw out. Like fuselage sides, some tail surfaces, fuselage formers, wing ribs, turtle deck formers. You have to have a good supply of balsa sheets, sticks, ply, etc. They might not supply the plans, but Outerzone has most anything that can be reprinted to full size plans.
So far, I have bought from Balsa Workbench.