Thanks for the tipAccording to this thread, the original for this frame would have been 1 1/8 threaded steerer/ headset
The ebay Rockhopper above would almost certainly be 1 inch steerer tube and headset.
I needed Direct Drive forks for a Stumpjumper and they were as rare as hen's teeth for any, never mind a specific colour and year model. I ended up buying a tired Rockhopper just for the forks and respraying.
These might work albeit a lower spec than for a Stumpjumper:
https://www.ebay.co.uk/itm/325542561684
Thanks I think that one is a 1inch forkhttps://www.retrobike.co.uk/threads/specialized-rockhopper-frame-forks.460064/
Might be of interest to you?