I'm sorry to hear that your options in Europe are disappearing. From what I have read you are right about this. There are very few, if any, places left in Europe that will allow you to homeschool/unschool without filing reports and having the kids tested at regular intervals.
I hope you find your place soon and that you will be able to enjoy the journey as well.
We will be in Sweden for part of the summer and will miss you guys if you don't make it up north.