Impressive collection! It would break my heart to have to leave so many games.
When I moved to the US from Canada I was determined to take all of my games with me. Unfortunately, I only had one extra suitcase and needed to stuff everything I had in that. Which of course didn't fit.
My solution was to discard all of the boxes and booklets (I know!!). I was young and dumb and I've regretted that move whole heartily ever since.
I hope you get them back soon!!