Following on from Chemlak's and those who also helped, I offer an extracted version of Building tab from the spreadsheet.
I added a:
"Discount From:" column
"Economy/BP" column
"Loyalty/BP" column
"Stability/BP" column
"Unrest/BP" column
The last four allow users to easily sort to see what will give the best "bang for buck". The "Discount From:" aids in planning.
Positive numbers in the "Unrest/BP" column are bad :-)
It can be found at: Building Sheet
Chemlak and others should feel free to take it and use it as you will :-)
PS Let me know if you have any issues accessing it, I don't have much experience in sharing docs like this.