Prometheus wrote:

Anyhow, if you've got an engineer on the job, I'm sure you've got it
under control. I was thinking it might be a DIY job that was by guess
and by gosh, and I'd hate to hear about a guy's shop getting whacked
over by the first good storm to roll along.

I'll skirt the edge of seat-of-the-pants-diy as close as I can. I think
the engineer will be cost effective both for allowing me not to
expensively overbuild and for easing my drawings through the building
department with that all important stamp on it.