Getting to run this exact setup on a big outdoor festival stage has been a dream of mine since I was in my teens!
It was eons ago, but BP Magazine showed a diagram of Michael Anthony's VH stage setup. It consisted of an SVP-Pro tube preamp, 2 SVT 300 all tube amps, and 4 Ampeg 810 cabinets. Then, it showed the SVT 300's rackmounted, with a few spares, and two spare SVP-Pro preamps. drool.
On his side of the stage, there was a wall of 810's behind him, with gutted SVT-CL heads, with lights as stage props, stacked on top of the 810 cabinets. He admitted they were only for show, but damn, did that setup look cool!