Few questions about finding items after battle

[Alneyan]

Nerfix said:
Construction 12? O_o

Solaris stuff was Construction 12 back in Dom II, a magic number that basically means "does exist, but you're not gonna forge it, ever".

I doubt the magic number has been changed since then... and perhaps I should update the Null Item mod, one of those days.

PDF's formula does not specify any clear answer for level 0 items; they can be picked up, with odds around 20% according to my experiment. So, is the odd equal to level 2 items (20% for both), or is it (20% + level of item)? The latter would mean "level 8 items are always picked up"; I doubt that's the case, but I cannot check at present.