You'll need to string a few racquet to get it done under an hour. Go to www.sptennis.com
and view their string videos.
Whatever you do you need to be consistent with time it takes to weave / tension / clamp to get a consistent string bed. Weaving crosses is whats difficult when beggining. I recommend watching the sptennis.com video.... Start off learning to string with 2 pieces, and learn the "weave one ahead technique" in the video.... Also watch the other video where a racquet is string in 15 minutes for some tips.