^ Thanks for the advice. It didn’t work, but it was worth a try. I only have one mapp torch but I got it pretty damn hot.
I do have an update though. One rotor off, one to go. Searching around my garage I came across a 110v angle grinder that I forgot I had. Nothing like a whole lot of frustration and what basically amounts to a giant fucking dremel tool to add to the destruction. 
Cut that thing from the outside edge to within 1/2" or so of the hub (closest I could get without hitting the hub). Then took the 3 foot crowbar and start prying the life out of it. Once the rotor was looking suspiciously like a lock washer a few taps from the sledge knocked it loose.
I’ll take picture of the aftermath on these poor rotors tomorrow.