tube pre amp with tube / SS /hybrid power amp ?

Ckoffend, your kind of input is what i am looking for.

will tube pre and SS power amp can preserve the tubey sound i am after?

so you mentioning about damping factor, whats the guideline for that?
some 10 times of the other? pre damping factor has to be around 10x of amp damping factor or vice versa?

if there is no coupling cap to protect the amp. will it be possible to install ourselves?

You are pretty much describing Blue Circle gear. Most all the preamps are tube and most all of the amplifiers are hybrid.

I matched a Lamm LL2 Deluxe tube preamp with a Moscode 401HR (tube/SS hybrid) with outstanding results...one of the best combinations I've ever owned.

A friend matches a CJ CT5 tube preamp with the Moscode 401HR with equally good results.

It would help us 'Goners trying to advise you if we knew what speakers you were driving.

However, I too would recommend the Blue Circle gear, at least their power amps. I'm running a deHavilland Ultraverve 2 preamp with NOS tubes into a Blue Circle BC-28 tube/SS hybrid power amp. It is a low cost alternative to the all Atma-Sphere system I used to own. While not up to that standard, it does quite well without the heat generation and retubing costs. Very good tonality and clarity, overall a musical sound that can be listened to for extended periods of time without fatigue.

My father has on order a Aesthetix Atlas hybrid amp that we demoed with a Audio Research ref 3 (same pre as he owns) and the match is sonic heaven.atleast ith his Vandersteens.