Supravox 215 field coil on OB with power supply, higher than what you have budgeted, might be the last speaker you might ever own...
more realistically, the FTA-2000s as some people have suggested.
Max, with the FTAs, you need no supertweeter, unless of course, we want a little more "air."
Most commercially made speakers as commonly recommended are more cabinets and mark ups for advertisement rather than raw performance speakers.