I dont think my config.g would help the op as I like to do things in my own particular (some would say unorthodox) way, also my X axis (the MGN15 rail) is much longer than the normal X rail as I park the head way off to the left to allow me to use a wipe script in my slicer start g-code.
So my axis minimums/maximums and some other code would only create confusion.