I have a PL2 and use it with Triangle Cometes. They have come up here for around $400 used and a bit more new. See what kind of deal Upscale Audio has on them or for less money try the Stella or Titus.
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You have a lot of choices in the price range you are looking. Have you looked at partsexpress with their line of kits they offer. They too have some kits with drivers from Usher that are pretty good sounding and they won't break the bank.
Have you also looked at the Magnepan MMG's? That is a wonderful speaker in your price range. And 40 watts will drive them well. They do have to come off the wall a bit which may be inconvenient in some rooms.