I’d get the 250-000 style of QCTP personally. It can be had for around £40, and standard tool holders to fit are around £7 each.
Warco don’t sell this kind, but Arc did.
In answer to Nigel’s point, I’ve found there are many things I’ve needed that neither Warco nor any of the other UK home machining suppliers sell, and it’s almost certain that the source for at least some of what Warco does sell is effectively or actually the same as the sources used by the online supermarkets.
I have the 250-000 type on my WM180 – much better than the sort Warco sell for this lathe (they’re out of stock at the moment anyway).
You do have to do a little messing around to accommodate the spigot that the 4-way toolpost rotates on, either by making a plate to lift the QCTP above the spigot (what I did), or by removing the spigot entirely. Ask if you decide to go this route and want further details.
You can also get copies of the Multifix type (see https://www.lathes.co.uk/multifix/). A bit nicer, but more expensive.