As everyone has already said, this is a really good base.

 Polishing some details and adding some more content and mechanics could make this a very fun crafting/managment game. Good Job!

There's the potential for making this a fairly engaging process, as opposed to most games where you just craft something by selecting it from a list. There are a few counter-intuitive processes, though, and clicking on items to add them to my inventory seemed a fiddly task. I'd say you should definitely keep going on this one.