I was wondering, for future possible upgrades for my bike, what limits I would have with trying to put a rigid fork on it.

I think a fork like the one on the Surly Krampus seems good, but I have no idea how this really works, so that's not based on anything.

Forks | Parts and Accessories | Surly Bikes

Is something like that compatible? What would happen if I put it on this bike:
Fuji Bikes | MOUNTAIN | SPORT - HARDTAIL | NEVADA 29 1.7

I guess I just want to know if replacing that suspended fork with a rigid fork like that on the Krampus is reasonable, whether the parts are compatible, and if it would do anything (good or bad) for the bike.