I can see parts that I could reasonably cut or break off. But I really want a chance of convincing some philosophers, so I have to address the points in the notes somehow. Perhaps in actual footnotes?

As someone inferentially closer to philosophers than most people here I don't think the 'notes for newcomers' section is particularly essential to this endeavor. But the main thing is- this looks like a 15-20 page argument you've condensed to 4. So what you need to do is either forgo this medium and just write a full paper or break down the argument into sections that can be posted separately.

Do you plan to wait and address the content after I fix that?

Nah, I just got confused and then distracted and then moved on. I'll try to do it now. Feel free to harangue me if I don't.