The only retrofits I have seen are those that goto '14+ solutions on '10-'13 models for headlights, grille, etc.
At the moment and I could be wrong I don't remember a direct AFS conversion to LED with those '14+ solutions. A few that went '14+ had to keep the AFS components plugged in to keep errors off.
In your case... perhaps go halogen but keep the AFS related components plugged in so no errors. This is all pulling out of mine and memory... you'd have to look at the wiring diagrams on this site..... sounds like you may be short of time for a quick solution other than just replacing the AFS unit. Perhaps look at salvage yards and eBay?