All the rest but #7 I can agree with, esp. # 3, because Jesus repeats it in Matt 22:37, Mark 12:30-31 and Luke 10:27. So pretty sure that one is a keeper!
Because the other 8 involve serving and honouring God, I think they are relevant, but perhaps not in context of delivering us from bondage in Egypt, unless you want to really make that into a spiritual metaphor, which is going a bit farther than the text allows.
Really, I think the proper way to do this, would be to take each law and compare it to a New Testament passage that either agrees, supersedes or is not mentioned. If the law is not mentioned in the New Testament, it is probably not relevant. The reason I say that, is that a lot of the New Testament, from Luke and Acts, John and the most of the epistles were written to Gentiles, not Jews. Of course, studying these laws in the Old Testament does give us a greater grasp of the Bible, so from that point of view, this could be a valuable study. But I really would like to see how many are applicable to today, as reiterated under the New Covenant!
Therefore, I do not think as Gentiles we are obligated to be under any of these "laws" unless the New Testament reinforces them. And I do use the word "law" loosely. I think that we are to obey Christ. If Christ or the other New Testament books point out an Old Testament injunction is important, then we need to pay attention, and see how it applies to our lives. As for the Levitical laws and some of the other 613, I doubt as Christians we really need to go through them. Unless it is for the purpose as expressed above, which is to compare them to the New Covenant. Just like under the Adamic Covenant, meat was forbidden to eat, but allowed under the Covenant God made with Noah, things have changed from the Old Mosaic Covenant to the New Covenant.
Sadly, some people do not understand that!