Thanks, everyone. I knew I'd be flooded with well thought out responses, and you gentlemen sure didn't disappoint.
There aren't any serious flooding issues on any of this ground at the planting sites. That said, there are a few spots where the rd is considerably higher than the field edge. I hadn't thought of the berm idea. That will work great in those locations, making it just wide enough to plant a couple rows of MG, a single row of evergreens or both. that trick could easily get the privacy fence about the rd.
Chickenlittle, the stuff I'm looking at is sterile, only kicking new shoots from the tubers. So, one or two sprays should wipe it off the map, if it ever comes to that. I've never ordered it. So, I can't address the "trusted source" aspect.