If you are in the US you might want to call Brooks Berdan in Monrovia, CA. They are a dealer but have a service department that has a lot of knowledge about BEL amps.
I would say about $1500 each. I would get a pair of monoblocks. The sound was way better than stereo, especially the huge soundstage of the monoblocks.
I have used them from MKIII all the way to MK V driving Thiels including the CS7.2. They are great amps. They were extremely reliable and never broke. Unfortunately the owner and designer passed away a few years ago.
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