Oric, I took the easy (but expensive) way out: As I noted earlier in this thread, I had the bass set up by a tech using a Plek machine. I had previously shimmed the neck, since the bridge saddles were as low as they could go and the action was still high. The tech took the liberty of removing my existing shims, which were cut from old plastic credit cards, and putting in a new shim made of some sort of sheet metal. I didn't see the necessity for that, but it did give the shop an additional item that they could charge me for.
Anyway, the setup cost more than the bass itself, but the instrument does play very easily now - rivaling the playability of any other bass I've ever tried.
Unfortunately, bass neck truss rods do need to be tweaked now and then, and on a stock Dano '63 there's no way to do that without removing the neck. (I've read about someone who modified his instrument by cutting a channel into the top where it meets the base of the neck, enabling him to insert a hex wrench and adjust the truss rod without removing the neck. I don't intend to try this myself, though.) I see that with the new Longhorn reissue (the third reissue of this instrument, I believe), Danelectro has finally gotten the right idea and moved the truss rod adjustment to the headstock where it belongs!
P.S. My bass came with two hex wrenches - one for the neck, and one for the bridge saddles. Didn't yours?