It looks like you have a very well thought out system there. I was actually considering the VR2s myself for awhile but never got a chance to hear them - their specs are quite impressive and I'm sure the rear firing tweeter must be very interesting once you get it set up properly.
In any case, I'd assume they sound great with 100 watts of EL34 tube power behind them. I recently moved to tubes myself and completely agree with your sentiments regarding them. No looking back over here either.
Enjoy!