I don't believe you would need necessarily need 8wpc for speakers with 96db sensitivity. You may want to keep your options open. I'm driving 99db speakers easily from a 45 tube amp - so around 1.6 wpc. 300B's are nice, but 45s and 2A3s aren't that far off and are still somewhat available as NOS without forgoing your child's education. My point being, when shopping tube amps, make certain to shop tubes as well.
