I think the big problem with a classic WW is her limbs.
Unless they can camouflage a seam with the pose, at the very least the head and upper trunk/arms need to be all silicone.
The legs they might be able to get away with polystone/resin and a great paint application, but that's less likely with the upper body.
All that silicone is going to increase labor and jack up the price- on what are already very expensive pieces from a company positioning itself as an premium brand.
That last point makes it all the more troubling to me that the one production sample I've seen in someone's hands (the Arthur Fleck) had, frankly, a jaw dropping half-assed hairline.
They put out great PR videos- but this to me undercuts all that smart salesmanship. This is the caliber of work they are actually QC'ing and sending out to customers. Their first piece even, when you would expect them to be even more hypercritical.
Fortunately for JND the owner still seemed quite happy with it. He even filled the hair in himself.