One of my friend is the owner of Silbatone who display his vintage horn in Munich high end show.@shkong78
I've heard that system in Munich in two different years. I liked it a lot. But having also heard the Classic Audio Loudspeakers, I would go with the latter in a heartbeat. Your friend's system was inordinately complex, somewhat diffuse for centerfill, and lacking the frequency extremes (in spite of the Altec-based subwoofer). Despite that it was one of the more interesting systems I saw at the show and I took a lot of photos. If you want it for the shear size and impressiveness of how a system that old that can sound that good, I can see that.
But if you simply want something that sounds the best it can for the money then I would look elsewhere.