Hi there!
Two years after the initial request, I implemented the new building system. The visual part is still WIP, though. But overall - now the building construction is not instantaneous but requires the actual survivor to come to the building site and do some work there.
I skipped the whole resource logistics part, my earlier experiments with it were really boring. So, you need to bring gathered resources to the main base and that's all - they are becoming available for every building, construction, production, and survivor anywhere. Yay for sci-fi elements 😃
Though, I may return to this whole "bring resources from one building to another" system later on, if I'll finish everything else and will be really bored.
Will be available in the next update. And I hope I'll be able to push the development build in steam beta branch in a few days.
Stay tuned! ;-)