Dynaudio Confidence C2's or C4's would meet your price criteria if purchased used. The C2's are approx. 61" tall and the C4's come in at 69" tall. I have no experience with Kharma's speakers, but I've owned the C2's and now own the C4's, and can tell you Dynaudio's Confidence line is no slouch. There's a pair of Rosewood C4's currently listed at a decent price that you can look at.
Where you may run into an issue is the 2 foot distance from the back wall. I currently have my C4's approx. 36" from the wall to the back side of the speaker. You could stuff the rear ports with the foam plugs that come with the speakers.
Considering that you have two other systems, another consideration is to sell your problematic system and dump the funds into one of your other systems. But then again, based upon your system description, it does not sound like funding is a problem for you ;).
Where you may run into an issue is the 2 foot distance from the back wall. I currently have my C4's approx. 36" from the wall to the back side of the speaker. You could stuff the rear ports with the foam plugs that come with the speakers.
Considering that you have two other systems, another consideration is to sell your problematic system and dump the funds into one of your other systems. But then again, based upon your system description, it does not sound like funding is a problem for you ;).