install drop cache
you'll see right away with your own eyes that Harmattant with less then 1 GB of RAM is hopeless.
after starting up, clearing all caches sometimes gives you about 500MB or free RAM.
most of the time it is less then 400MB

the only sensible thing you could do with the "Dali" proto would be to take the 64GB internal storage and put it in one of the other ones, if that's even possible...
probably slower then the 16GB ones.