low power tube amp

Klee123,
If the Focal  speakers don't work out you should really consider looking at more efficient and easy to drive speakers.  I think that this 829 SEP  amplifier you have is special.  The right speaker match would allow the amplifier to shine to its full capability. 
Charles 

thanks
you guys are a wealth of knowledge

yes, i also think the 829 amp is something special.
It had a great review by wall of sound in canada.

I compared it side by side with simaudio moon's flagship integrated amp, and the difference was not even subtle. The 829 had texture and detail way beyond simaudio's

I would ask your amplifier builder once you narrow down your speaker selection as you have a unicorn for an amplifier.   I would also ask him how he built at kt88 SET amplifier. In my 35 years of owning various tube gear have never seen a KT88 SET.   Would definitely audition amplifier and speakers hooked up together.   Power needs are gonna be dependent on material, room size, volume levels etc.   Most likely you have a SEP (pentode not triode) amplifier.

Hi timber77,
Yes,  the distinction between SET  and SEP  was explained earlier in this thread. The actual tube in this amplifier is an 829b. 
Charles