Take a look at other highly efficient speakers, too, especially on your budget.
Klipsch makes some wonderful models - the Klipschhorn, La Scala and a few others are longtime favorites of SET owners.
So are Lowthers, which have a longtime cult following. So does Altec's Voice of the Theater speaker.
If you want to go exotic, consider some of the field coil speakers, like Supravox and Fertin. There are a number of boutique manufacturers, too, but field coils are very much a small niche.
Some high-efficiency singledrivers are available, too. Cain & Cain makes some beautiful ones, but you can source some terrific drivers, too, like the ones from Jordan. The Hammer Dynamics one is popular, too, though it's coaxial.
Now, some of these come as raw drivers. Not to worry, a good local cabinet shop can build them. Not terribly different from a kitchen cabinet and something like a Lowther has a simple electrical connection - you just hook the driver to the terminal posts. Two minutes and it's done. There are advantages to having cabinets built locally, too. One, you won't have to have them shipped. Two, you will get to pick the wood and finish. If you have a Significant Other about, the SO can have the cabinets matched to the furniture, walls, floor, or whatever the SO wants. That can be a peacemaking compromise when you drag speakers into the house.