Haven't had a reason to try it. but once you get the wheel bearing thing figured out it shouldn't be hard to do.
The first thing I would suggest is figuring out if the depth of the hub will match up with the spindle. That is "will it fit on the spindle and allow me to properly install and adjust the spindle nut?"
The spindle being a tad longer than necessary isn't a big deal as you can make/use a spacer. Shorter is a very big deal.
Once you get past getting the rotor mounted with proper bearings and seal the caliper mounting breacket shouldn't be a big issue. Either you will have to make a pattern and have it cut out or shop the brake conversion vendors and find a bracket.
I think the hardest part of the whole process will be getting inner wheel bearings that match up.
In the Jan 09 Classic Truck magazine on page 71 Master power brakes shows a bracket kit with bearings and seals. I'm not sure if those brackets are the ones that you would need for your rotor of choice but I think I would start there. According to the web site the kit is 189.95 and if it will work it might save lots of hours of hunting.
http://www.mpbrakes.com/products/pro...product_id=213 It may be set up for the Chevelle size rotors though.
Further hunting shows that that kit is for 11 inch mid size rotors.
If you have the front rotors off the same Cad that the rear end came off they should be the same as the mid 70's C 10 rotors.