this is incredible, the UK is home to some of the finest speaker and drivers in the universe.
I'd spend little/some/moderate/lots of money on anything with KEF on the inside or outside.
You can probably find a pair of LS3/5As for low bucks anywhere in the isles.
btw if you change the woofers, the grill, the cabinets, the crossovers, the labels on back,
the tweeters, the stuffing, and the size of the cabinets, is it still the same speaker?
as I mentioned in another thread, these KEF and other british speakers used butyl/rubber
surrounds and unlike, say American speakers with their 10 year foams, do not come apart
disintegrate or need replacement.
Those original LS3/5A sold for $300 here in the US and probably well under 200 pounds
(due to better exchange rates) and here in the US, they now command 3K and more.
It's like mullard el34s (XF2), numbers going down daily even with modern day clones
of both.
unless you're building a visual stack and have to have one and only one vendor,
then you might consider best of breed.