Thanks for playing, we are happy you spent a good time on it!
We have put a lot of efforts into the polish, we wanted to give as much as feedback as possible in all actions the player would do, and we are happy you notice all that :)
During the development process, for debug purpose, they were actually 999 resources for each type, and I think it could be an awesome sandbox mode for people who just want to make their own construction, it's a nice idea indeed!