While you will be better off on a mens board, I just don't see the value in the Box Scratcher. No one needs a $460 retail jib board.
Look for: Flow Verve, K2 Weapon, Ride Kink, Echelon Orion or Archer, Burton Deja Vu Camber or Parkitect, or an Arbor Cadence or Westmark.
You've got the size figured out. Most of those should come in like a 51-52, that's what you want.