Interesting topic thanks guys.
In my old company using Jeppy plates derived by pans ops and certainly for a couple of airfields we operated into we had different minima for minimum achievable climb gradient as worked out by you from the performance dispatch section.
Never had I considered modifying our standard single eng go around profile which for your info included acc at 800ft agl. Thankfully I cant recall ever having to use the procedure in anger at any of these "limiting" airfields but it certainly poses an interesting thought process. Gonna get the old books out and have a check me thinks.