Wilfredt,
The VAC Phi 200, at 100 Wpc in stereo mode, is a direct descendant of the PA 35.35. The layout of the tubes and transformers are identical. They can be used as mono-blocs as well. I bought my VAC right here on A'gon for the nominal sum of $1200. You may consider purchasing a used amp, see if you like it, then move up in the line with new models. For what it's worth, when I talked to Kevin Hayes to thank him for how my amp now sounds, I found out he is very interested in Tannoys, we had quite a discussion about them. He has been using Tannoy Westminster and the Royals ( can't remember rest of their name) at shows lately.
Best of luck, and regards,
Dan