you won't get the wire to show up in the render, you need to use the images form the playblast and overlay them on the render. I use nuke but aftereffects will do or even photoshop if you're just doing a single frame. Use a plus merge and the black will disappear leaving the render with the viewport wire over the top.
If you can't get it no bother i'll record a short video will have to wait till the morrow though as it's midnight here atm.
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"