2. Permanent residence is for foreigners. The China nationality is written on the ID card, and the contact address is written in the place where you have been living.
The gray box is only for you to fill in. There is not much difference between writing and not writing, and it can be deleted.
4. The drawings are A4 specifications, and the versions are typeset by CAD, and typed without borders. Unfortunately, I'm not good at CAD typesetting. It's all done by cartographers. I can not help you with anything.
5. Signing and stamping is naturally irreplaceable by computers.
I hope you are satisfied.