I has 4 564 (one R564B w MOD121, 2x 564B, 1x 564), two from 4 is already sold.
One 564B has 3T2, 3S2, with S4 Sampling head, Plug-in is moved to 567 and 564B is sold. Because, i am interessing only on Sampling plugin.
Other 3 has 3A6 and 3B3. Not very interessing, but it is very cheap or a donate for me.
R564B is with unreliable 3T77A & 3S76
@David Holland, i has only 3A5 with grey face (it is seeing by TekWiki ())
Found other grey 3B5 is nearly impossible, i think.