I owned VTL 300s for several years driving Duntech speakers, a nice combination. If you don't need the full 300 watts, they can be changed to triode operation by moving/resoldering a single wire in each mono unit as I recall. That will reduce the power to 150 watts but may add some "sweetness".
Contrary to some, I found VTLs service to be fine, though almost never needed. But they are heavy so a local tech may be better if needed, depending on where you live.
No experience with the VT-200 so can't comment there.