Tube Pre and SS Power? Or the reverse?

I'd like to see the frequency curve for these.
With a big room and these specs:

Ohms (nominal) 3.7 ohms (minimum @ 90 Hz)
Sensitivity     87.7 dB SPL with 2.83 V @ 1m (4 pi anechoic)

I'd probably opt for SS amp and tube preamp.

I've always gone with tube pre and ss amp, simply because I don't want to deal with tubes for high powered amp...sonically just gotta listen...

For me, If you have reasonably high-efficient speakers(needing no more than, say, 50watts) then there's no reason not to go tube pre and power amp.  If you need more than 50-60watts then use a tube pre and solid state power.  Naturally, some tube power amps can deliver more than 50-60 watts, but you're stepping into a different "region" of tube power.  

I'm trying to find a dealer in the Charlotte area where I can listen to different variations but so far very limited inventory - only the C2800 pre and a MC462 Power amp = $22k.  A different dealer - who seems to be a McIntosh pro - suggested the opposite.  

So there doesn't seem to be a way to compare, unless I want to buy them and then return if I'm not happy, which I don't like to do.

I use a tube pre and a SS power; I'm sure there are some who do it the other way, but I've not come across any.