It's £5000 for a slightly souped up Marshall....
It's 5K for a fully handwired amp with 3 channels and 2 boosts (5 sounds), variable boost adjustments, switchable tube buffered FX loop with send and return level, remote controllable master volume (via expression pedal), custom UK made transformers, selected, partly NOS caps and resistors, hand built from A-Z on turret boards and equipped with NOS tubes which alone have a market value of around 500-600€.
A comparable amp in terms of features would for example be an Engl Invader, but that is series production with mass industrial parts and completely built on pcbs. I don't say that the Engl is a bad amp, as it offers similar functionality at half price, but it plays in a different league build wise.
I stick to it, it's a fair price. And I am confident that the experience is breathtaking (I will see).
Again, I cannot imagine otherwise that Tim would shell out 5K for an amp.