Hi there
I also have a similar problem.I have an ICAO CPL and currently fly 737NG as an FO,i have a frozen FAA ATP and i need to do my checkride on the 737NG sim so as to have the 737NG endorsed on it.Does that require me to do a full type rating or just few sessions in the sim since i'm currently flying the plane on another licence.Your cents are highly needed on this matter.
Best Regards