Questions About Dualbooting

I have a razer blade 15 base 2019. It has a nvme drive with windows on it and a sata drive (HDD) with my files and games. I want to install macOS on the SATA drive and leave my nvme drive untouched.

How should I go about this considering I don't want to lose my files? I tried following the dortania multiboot guide for the same case as I have but I have a few questions.

1. I don't have an EFI partition in the beginning of my drive, can I make one without erasing my files?
2. Is an EFI partition in the beginning even required? Can I make an EFI partition after my data partition and before my MacOS partition and still boot from it.

Note: I have attached a picture of my partitions so far in minitool partition manager.

https://preview.redd.it/jy2r1be8fqc71.png?width=773&format=png&auto=webp&s=a4964db0fa9f64229257c2dc72e3d0ff7770a7e5