Hi Jerry,
I'm not sure about your request for 153IR modules. Are you looking for Lionel's 153IR controllers? I'm considering changing from Lionel O tubular track to Gargraves and would transition to Z-Stuff for Trains signals. If you're looking for 15IR controllers, I may be able to help you as I have a number of controllers, all in good operating condition, but used.
Please let me know.
Thanks,
Bob