Guys, as Nicklab pointed out, some of the Hasbro stuff seems intended for wider than just SDCC availability. Now, there is some interpretation that is left to the imagination, but if the R2/3PO exclusive shows up online at SWS.com, I'll take that as a pretty good indication of the rest being made available. The hitch, of course, is just how long these things stay available online. So far the McLuke wasn't up for a very long time, but we can watch its availability as well.
Concept Grievous: SW Online Shop
Concept Yoda/Obi Wan Kenobi: Hasbro Toy Shop
R2-KT I can't find in the pics, but I can't imagine them limiting a fund raising figure produced for charity.
The shadow scout trooper does appear to be exclusive to the Con.
I totally understand the desire to assure ourselves of these damnable exclusives, but let's keep our eyes open and if we can unburden our "helpers", let's plan on doing so. Now, who's helping me?