Honestly, I would be happy with a re-release of the cyclone/cyclops afc in large enough numbers that the price became around $60 complete with fusion top cap. The one and only thing I don't love about the cyclone/cyclops bf is it spits more than any other atty I have. All things considered if it came as a complete 3 piece set as a clone; I would buy my very first clone. As a general rule I abhor clones, they kill innovation and resale value. Chi You for example.
ETA: In regards to the actual topic at hand:
All stainless
Not Chinese
Afc
Dual coil ready
Offset posts (like the cyclone) I like straight tails (biggest downfall of the rm2)
I like the idea of a SS RM2 with air control or something similar to the Cyclone with air control.
I love my RM2s but would prefer SS.
I'm good with the requirements that Chowder threw down, and also what BlueSnake suggested, a SS RM2 w/ AFC (love the size and ceramic). I suggested the IGO-W7 in the other thread, but if there could be had something like the RM2 w/ AFC, the Cyclone w/ AFC or that which fits Chowder's specs, at a decent price (not over $100 for the BF rda), and smaller than 22mm, I'd throw down!
My RM2 air hole is drilled to 1.7mm, but it wears a custom AFC ring made by Pdib, very handy!