No worries, on the duplicate posts... was more or less just noting it, as a common courtesy!
As for your knowledge range, you've got quite the resume there. With the knowledge you have, my personal experience says you could go ahead and go with the 560. I know you said you had little OS or programming experience, but if you truly have achieved CCIE Security and some of the others you've listed, I think you'll be OK, and you can come up to speed, quickly enough, to go at 560.
Are you looking at vLive, or classroom? Obviously, the face-to-face experience, especially if you get Ed Skoudis teaching you, would be 'best possible scenario.' (Not that other instructors or methods wouldn't suffice, as well, just that, coming in, cold, sometimes, having the instructor at your fingertips can be of benefit.)
Pentesting, full-time, you'll eventually want to delve more into programming and such, as well as learning more of web application and programming languages, but I think the concepts and knowledge you'll need will continue to build, with experience and further education / learning, as you grow with it.
Now, to be fair, I WILL say, I think you'd have an easier go at either of the SANS courses, if you first had Security+ and / or CEH, and had more fundamental base knowledge specific to this field. However, again, if you're capable enough to hold the certs you list, I think you'll be alright.
My opinions, anyway...