monoblocks for von schweikert vr2?

hi, i currently exclusively listen to sennheiser 650 headphones but i am ready to assemble a modest speaker system for mid sized room 15x20'.

my current headphone amplifier is wooaudio 3, which is class A SET and also works as preamp, ideally im looking for monoblocks in the $1000-$1200 range (used) that i can mate to this headphone/preamp.

the maximum sized speaker that this setup would be driving is something like VSA VR2, not super efficeint (<90db) and alittle more power requirement than standard bookshelf.

i would prefer tubed monoblocks but i am open to solid state (small chasis) as well. most of the decent monoblocks ive seen seem disproportionately expensive considering the speakers in question. i guess if the monoblocks dont pan out an integrated will be in order, even though redundant for me.

thanks for any recommendations!
ian