mag rim VS spokes

I have a zrx 1100 swinger that is a future project for my 650, I have been wondering what is best for weight. The matching zrx1100 rim orrrr a kz hub laced with stainless spokes out to an alum rim. Now I want to save on unsprung weight, rotating however I also want to run a disk set up of some sort (I have never been a fan of drum breaks)

The second half would be has anyone adapted a modern rotor/caliper to the kz hub?

Thanks for the input!

Rocco

Any debate and information would be useful to me. Does anyone know what the spoked rims end up weighing?

Anythings seems likly improve over the c1's standard mag wheels. I would like to run a fatter tire in the new swinger but nothing crazy.