on a nimbus frame it’ll be fine, it’s on the alu frames with big bearign holders it is problematic. But the k1 hub fits everywhere i think, simply because it’s not as wide as the kh hub so it’s basically easier to fit in frames.
I would give you a good chance of it working. You will have less Q factor and you still may run the chance of there not being enough spline and cranks being just a tad loose, which is no good. I think as long as you are not already rubbing your spokes on the inside of the frame you have won half the battle.
I cant tell you for sure tho only having all the parts right there in front of you will tell you for certain.