Hi Evilone,
I totally understand your plight and your motivation. Sometimes these fades can get complicated when other people (like your wife and her family) are involved.
Like many here, I too served as an elder for a long time and have now successfully faded. If it was just myself, without any family considerations I would have announced my departure during an assembly part, but alas I had to make my exit a little quieter without the drama.
I think your plan is good, and as Intel said, you have received some good advice here. One thing to keep in mind - the cards really aren't the be all and end all .... the more important consideration is not having anyone find out where you are living.
Elders are instructed to make up new cards for ANY FORMER WITNESSES THAT THEY MAY FIND IN THE TERRITORY OR THROUGH ANY OTHER MEANS.
What this means for you is - after you move, do not speak about your former life as a JW to anyone. Close the door on that chapter of your life. Also - you should prepare for what you would say if a JW does call on your door and somehow knows you are a former JW.
IF YOUR PRIMARY CONSIDERATION is to avoid getting DFed: My advice would be to tell that person who calls on you - "We no longer attend the meetings, and we have decided not to discuss the reasons with anyone." End of story. It works.
Later on when and if your circumstances change and you are no longer concerned with being DFed, then you can prepare for a much different discussion with any JW who may call on your door .
In the meantime - GOOD LUCK, with your plans to exit the cult. A very good and WISE decision, no matter how you slice it.
Cheers,
The Oracle