I'd second the Khorns, warnings about shipping, and do go for vintage 70's 80's versions rather than new. A local pair would be best. LaScalas will give you the same midrange and not nearly the bass (assuming you have two corners to put the Khorns into). Plenty of good tweaks to with either choice. With horns your choice in amplification is absolutely critical and can make or break your experience of the horns. Tubes and horns are a brilliant combination in general. SET, Triode, OTL would be my favorite combination, but others can work great too. In the SS realms I have not heard many that I've liked with Klipsch, but McIntosh would be an exception. You may want to go take a listen to a well setup horn system if you have not had much experience. They are quite different sounding than conventional speakers, and Quads as well. A'gon member, Peter_S has LaScalas in a secondary system, has had Quad 988's and now Avalon's in his main system. You may want to try contacting him for some input on the differences.