You could make a Dartington - nothing other than butt joints in them (other than the frames, of course).
They do have issues - err, like not so good for migratory beekeeping and that the floor is integral with the brood box, but I like them. They can be made in different sizes (depth and length).
Personally, if no decent joints, go with flat pack - lots of companies do them. Boxes without decent jointing arrangements will likely not last so long before box-to-box fit is compromised. Ply may not be too bad in this respect.