That game has been on my "to play" list for a while so I will take a look!
Stats are not hard to define for the offspring and they might depend on the stats you yourself have, so sort of like inheriting a portion of the stats. It's pretty early in the concept stage for those sorts of minions so I haven't really made too many defined decisions on them yet.
You don't need to discard your Salt when recruiting him from around your house, it's just a gimmick for the initial recruitment process.
I don't really have any plans for player storage yet. I'm not even sure if it would be possible to implement. As for Item sorting, it... is unlikely at the moment, I am not really good with Ruby Script and have so far been mostly using third party scripts. I managed to do a category type sorting for now and I do plan to take another look into possible other types of sorting but from my prior forage into the issue it didn't seem like it's something that can be done that easily in this engine.