Ok,it's done : I've installed LL on this mini laptop and now I have something perfectly usuable and functional (which it wasn't while running onW7), a perfect and cheap alternative to a tablet.
That was my primary goal, I don't like touch screens, I prefer a true keyboard, and iOS and Android are far less enjoyable than they're advertised for.
Rooting a tablet is too bothersome and complicated, that's why I've decided for a mini laptop.
Moreover, this laptop is provided with a 2.5" HDD, which I'll change for an SSD later on. To conclude this story, for me the scap heap proved to be a pile of gold.
Have a nice day.