GEILING/EAB V65 Tube-Mixer 6/1 [9411] - €*1,999.00 : Schmitronic, Studio Equipment
Looks like a 6 channel to 1 mixer. Mono no doubt.
I know you need somebody with extensive technical knowhow to make sure it works as expected. If something breaks down it might be hard to fix it. If you want the 6 mic inputs to give 6 independent outputs it must be modified which might be extremely hard to do.
So it all depends: if it works and comes cheap, go for it, you'll at least have 1 great mic preamp. If it is expensive; think about what you want to do with it, what you can do with it and if it is worth the trouble and expense.