This thread has expanded a bit ... so I thought I'd point out some of the additional 'pitfalls' that this particular project is going to entail:
Watch out for certification requirements. These include:
You, and every lead man, will need the 30-hr OSHA certificate. Every worker will need the OSHA 10-hr. certificate.
Being a remodel, you will need EPA lead certification, and work areas will need to be tented off.
In addition, the asbestos issue will come up.
As a government project, expect LEED, or other 'green' issues, to arise. These may severely restrict your access to the site, and greatly complicate trash disposal and materials purchasing.
Don't be surprised if the phone/data/cable work needs a BICSI-certified installer.