Well, the dual disk wheel is from a 77/78K so my question wasn't specific enough.
I was trying to cut corners by asking the question. I have all the parts to answer the question, just didn't feel like building a dual disc wheel, and the F front end to see if they'll work together. It's actually a buddy of mine that needs the answer, he's got a K bike with F front end and wheel and a spoked rear. He's trying to get a front spoked dual disc front the easiest way. I have a bunch of 77/78K wheels and rotors, etc. so if it swapped in that would have been the easiest way.
Thanks for the info. If I find out the answer, I'll post it...
Matt