I have a new question though.
I will also download GAPPS 4.4 but WHICH package?
I see "Google Stock Package" (probably the largest), then "Full Modular" and few more.
Which one can we use (the most complete), taking into account the storage limitations of N7000?
Also, should I download any of the add-on modules?
It's really personal preference. You can see what's included in each package. Some of them remove AOSP apps, so you need to be careful about that. Take a look and decide for yourself
Also no need to worry about size limitation. AOSP ROMs are much smaller than TW ROMs, so you'll have a lot more space in /system, where Gapps are installed.