O-Scale Plasticville Dimensions

[NPGuy]

Hello, All,
I'm building a z-scale replica of the AF layout I had as a kid, including a Plasticville town.  I'd really like to get the basic dimensions of the Police Station/Fire Station, and the City Hall (based on Liberty Hall).  I can use real dimensions (as long as I know whether it's O or HO) or scale dimensions.

Thanks!!