Steam Workshop::Free Market Construction
steamcommunity.com
Here was the other one I was using until it stopped updating, but it seems recently it was just updated. Maybe give that a try.
Thanks, will try ASAP
This implements the other alternative of construction being a good, as a global one
Looking at the description and comments, apparently the fluctuating price of construction and the ability to trade it are problematic
I'll see after trying but it may confirm that preventing trade and fixing the price (like gold) would make it simpler