Robert, I think your goals regarding the Sunday meeting is a good goal to pacify your family while keeping the elders at bay. You are not alone in this situation. Some have already commented here. I think you will be okay.
Re others comments about Agnostic.
I like being Agnostic, I can change my mind to fit the situation. i.e. I'm a non-Jw father whos son lives with his Jw mother and Jw stepfather for the last 10 years. I have survived well so far with regards to my son wanting to see me and him not wanting to be a Jw.
I agree Agnosticism is sitting on the fence. And it is a pain in the rear because it keeps people guessing what I truly believe and it also avoids anyone labelling me, including the Jws.
However going back to Roberts situation which has nothing to do with what religion or faith he should be or not. He should still "pretend" in being a Jw for the sake of him and his family. As we all know, the WTBS does not cater well for ex Jws.