I am about the rig the long guns at the bow.  The dilemma is the usual  concern about how they could have possibly worked the port side gun.  But there is so much ample evidence that this is indeed where the long guns were placed.  Several contemporary model examples show them just as jammed in there.  I have posted a pic of the Rogers collection model although it uses a carronade vs. a long gun.  The original draft even shows the windlass being moved back two feet  to .....as noted on the draft