I have two sets done, complete retrofits on 2016 SLE lights. As far as I know, I have the only diode dynamics c-led switchbacks. I have had them since last September but I don't think they will be released until April.
I have a set of stock 16 SLE lights with 1 broken tab for $1000 shipped OBO. Tab can be safety wired.
If you want to see my current 16 lights, check my build..