You might check out the Wright Sound Mono 3.5's. If you look under the 'Wanted' section here, there are several being offered, and they are magical with the horns. A true bargain in the audio world.
By the way, Mechans, I am using a 7W 300B SET amp with my La Scala's, and they literally vibrate the house. There is more bass impact than there was with the Jolida 502B (60WPC) or Quicksilver Mini Monos (25WPC). If you think I'm joking, contact me on your visit to Sacramento and I'll let my little 7 watter send us both into an aryhthmic state.
I've heard the RF-7's at great length, with two different SET amps as well as the Quicksilver Horn Mono's. Nice speaker, but it cannot come close to the transparency and imaging of the older Klipsch. With a good 2A3 or 300B SET amp, the vintage La Scala's or Klipschorns will reproduce the recording studio with an accuracy that is hard to match, and one that makes the RF-7 sound wispy and highly colored. Of course, if they produce the sound that you like, then you've scored bigtime.