Barring really clean technique, 1200lb+ combined total club is when I’d expect it to be practical.

(Basing this off having visited the stone and toyed with it - but I’m not an experienced stonelifter speaking from expertise.)

That's not too extreme. At my age though I'd probably need to hop on the Secret Juice to be able to do it.

I've always wanted to be Fullsterkur.

Do you mean what lifts should you train, or what numbers you should hit?

What numbers I should hit, to see if it is remotely achievable.

That's a really difficult question because the Husafell is so different to a barbell - along with the fact you have to carry it 35m. There are aspects of grip and wingspan involved, too.

I say this as someone who hasn't touched the Husafell in Iceland (yet), so take it with a pinch of salt: From what I've seen, if you haven't hit a ~200kg (440 lb) squat and a ~250kg (550 lb) deadlift, you might struggle with the Husafell stone.

Interesting. I've done a 100kg loadable metal replica. I'm not sure I can see myself hitting those numbers outside of enhancements.