I have about 25gb free out of the 1tb my laptop has, sooo not a good idea, plus it adds complexity. Well, I'll just improve my scripts and try to keep things tidied up so that it becomes easier. (Lol, now I'm post factory reset and I've started importing stuff back to the phone. Till tommorow noon everything may be set up.) Tnx for your interest!
As a side note, I've realized that transfering files from the phone to the laptop (instead straight to the external hard drive) makes the process a lot faster, compared to moving them to the drive directly, but still, I prefer the wireless transfer as I can sync folders easier and it's faster.