Hi Mario, congratulations on getting such a great tube amp. I have a Classic 60 at home and a D70 in my office. My suggestion for you is to try the Classic 30 driving the midrange and treble section of the Vandersteen Model 2 (c, ci, ce, ce signature, whatever) and get a modest but high-current solid state amp to power the woofers (Parasound Model 275 v.2 works great for this purpose).
I know Richard Vandersteen discourages horizontal bi-amping of the Model 2 for musical reasons, but as a professional symphonic musician, I couldn't disagree more strongly. The model 2 woofer section only reproduces the range between 26-600 Hz, so all you need there is good strong current delivery, so solid-state is ideal. Also, by removing the burden of this frequency range from the Classic 30, you'll let it do what it does best, which is reveal stunning levels of midrange and high-frequency detail with no strain or smearing whatsoever. In this combination, the Vandersteen Model II sounds better than I have ever heard it, and actually better than the old B&W 801 with Threshold amps that used to be used in so many studios as monitors.