1. Items carrying is a general problem, which I'll try to solve in the next update.
2. Everything should be sellable, except quest related items. However, it won't sell if it doesn't fit the sell area. I'll add some feedback for that and maybe will make the sell station a bit bigger.
3. Yes, just not to be able to have the generator always turned on. But this most likely is going to change.
Thanks a lot for sharing your thoughts on that.