I am going to be running this path in the PbP forums. I've read a couple of suggestions for how a Dark Sun conversion, but wanted to see if I could get a bigger thread with cool ideas going to inspire me about conversion schemes.
For instance, I had a thought of making the City of Brass an isolated isle of super-kaltori (fire ruvoka) in the Sea of Silt.
|The Mad Comrade|
The greatest challenges for converting LoF into a Dark Sun AP is that, if memory serves, Athas' connections to places where genies dwell is either extraordinarily hazardous or non-existent.
My recollection may well be way off base, but if I'm right ...
Athas is unique amongst most worlds of the Material Plane in that it is severely isolated from the standard planar configurations. The inhabitants of the planes about I don't recall having the typical inhabitants.
Are you having the motive change from "woo Fire Princess monster lady" to "become a fiery dragon-king"?