you mean these wagons the 2nd photo is taken at Onllwyn
Accurascale NCB wagon at Blaendulais by brian mosby, on Flickr
The New Accurascale NCB Onllwyn Colliery HUO 24.5t internal user wagon set by brian mosby, on Flickr
I would say Not as notting is the same size
there are drawing of bboth 1/2 way donw this page on the Hornby site https://www.Hornby.com/uk-en/forum/post/view/topic_id/19400/?p=1
Heres my 2 sets of NCB HUO's
IMG_20190919_161259 by brian mosby, on Flickr
IMG_20190919_161311 by brian mosby, on Flickr
Need to get some of the wagon loads for them