I had the same thing happen to me a few years back. I started searching everywhere. There are some good PM books you can pick up on Amazon and the other big places such as:
Project Management in Construction - Sidney M. Levy
Construction Management JUMP START - Barbara J. Jackson
Construction Jobsite Management - Mincks & Johnston
All pretty good books. Keep in mind...Project management is the same regardless of the trade...but finding something specialized like sheet metal management is hard to come by.
But I have found that SMACNA has a pretty good selection of things:
Alliance Project Management
Successful Building Project Coordination
Principles of Job Costing
Project Management: An Overview To Effective Project Management
I am sure I have links and more stuff if you want to shoot me an email and I can find it for you.
It's a good opportunity. But get ready for the stress!!