There are a few ways of doing it.
1. Using a scanner.
A. You can scan one page at a time, but this might affect the binding depending on how you need to position the book for scanning.
B.You can scan two pages at a time. Again this might affect the binding depending on the position you need to use.
With both the above you may need to modify the scanned images before they can be used.
2. Using a camera. A good quality lens camera would be best, you would have to figure out a setup and the settings to give good quality images.
If you have the latest Samsung (S9) or Apple equivalent, their cameras may do I have heard they a good cameras and have lots of control over settings. But I would not go out of your way to get one if you don't already have one.
Again you may have to edit the images before use depending on how you set up.
For both of the above methods you will need to do a lot of work to get high quality usable scans but once you find what works for you and keep note of the settings and setup that works it won't be as time consuming as the first time around.

Hey guys! As I mentioned I have vol. 1-3 and want to upload all the raws. How should I do it without having to take apart the book? I only have I copy per volume and I'm thinking of buying copies again but it's not cheap to shipped to my house. What should I do???