Matching solid state amps with tube based pre amps

I have considered buying class D amps with tube buffers but am concerned that the inclusion of a tube would muddy the sound enough that I would not like the overall effect.

LTA MZ3 preamp into SPL S800 SS amp to Harbeth SHL5+ speakers. Love it. Have been able to alter the sonics somewhat by rolling various tubes to get things to my liking which to me is an advantageous, interesting and fun benefit of the tube pre approach.

"LTA MZ3 preamp into SPL S800 SS amp to Harbeth SHL5+ speakers" 

I have LTA MZ2 preamp into Aleph 5 amp to Revival Audio Atalante 3 speakers. Fits the 20 m2 listening room. 

Van Alstine SET 400 SS amp, Van Alstine Transcend 10RB tube preamp, Salk HT2-TL speakers. My searching is over.

Aric Audio Super 6SN7 preamp into an MSB S-200 power amp and Marten Parker Duo standmount speakers.