These should work. I haven’t needed to use them before, but did look into them when considering a new DJ frame with some old suspension forks recently.
Check the bottom bearing in your headset to see what angle the crown race needs to mate with (if that makes sense). The hope one you linked looks appears to be a simple reducer (expander?) that needs an additional 1.5" crown race on it before it would fit into the headset bearing.
Just checked the nukeproof listing:
“Hi, the pre-2015 lower bearing had an internal angle of 36, and the post 2015 lower bearing has an internal angle of 45.”
So I’d choose the appropriate NP one if your lower bearing has an angle of 36 or 45 deg. Or the Hope one (plus an appropriately angled 1.5" crown race) if it’s something other than those angles.
The hope one will give you a fraction more axle to crown length than stock by the looks and so a marginally slacker head angle. But I doubt it’s anything to worry about from the picture on crc.