Hey all, thanks so much for the info!
After a while I was finally able to get the bolts to break free... I hit me that if they had used a locktite type material then heating up the bolt could only help. Then I was able to track down a 6-pt 19mm socket rather than my 12-pt socket and I think that more than anything else sealed the deal... Hopefully I can get the rebuild kit in sometime this week and have the calipers ready to install soon... I've had this 560 for over 6 months now and haven't been able to enjoy it beyond the drive home and now I see the finishing line!!! Of course I've gone over my origional budget and I've probably got about $13k in it now but hey, its got a rebuilt top end, will have rebuilt brake calipers and a bunch of other things that are in top notch shape... Better off than buying a Hyundai!
Thanks again for help and the info for my first brake work... Once the 560 is rolling again, then it's the diesel's turn to have new pads and rotors all the way around!

The fun never ends...
Scott
Working on my 560 has been like wrestleing a gorilla:
You're not done when you get tired...
You're done when the gorilla gets tired!