I think that matching speakers and amps is more complicated. General idea is to bring the best out of the speakers not really trying to compensate for their possible shortcomings or/and hide them. In the above example, Accuphase might be more in tune with the Harbeths in terms of timbre and overall harmonic presentation, while Gryphon could give them more open and dynamic sound than Accuphase.
And to get both one would have to go after D’Agostino Momentum, I suppose.