Definitely still there mate.
https://maps.app.goo.gl/aXpdaZ7oWp3kBTrd9
All the buildings behind have now gone but the main original entrance and buildings you see in the picture are definitely still there. It's on the busy main road at the front but to the rear backs onto the park. I honestly think it would be a big ask to actually get in but if you could, you'd become a legend in the urbex community! Come over on the M62 and try it first, only 14 miles then downnthe A1 to Donny.
Will add it to the agenda, ta!