Westminster is due for a refurb. I would be surpised if Aecosim with its Reality Modeling smarts; government high security requirements isn't a shoo-in.
Bentley Professional Services should be assembling a crack church-going team to present to the CoE?
Maybe, even get itself onboard some framework deal to scan all those old churches. Revit would be pretty pants here.
Might even pay to buy into a surveying firm like P&C or one of their competitors.