Anycubic i3 Mega - Z Endstop Support

My Z endstop was getting bent down for some reason, and this caused numerous problems, both subtle and dramatic.

NOTE:
1) The height of this block is specific to my printer's bed height, nozzle length, and Zendstop screw adjustment. Which may not be - but should - be correct for any i3 mega. But adjusting your z endstop adjustment screw should compensate for most small differences.
2) The endstop switches supplied by anycubic have 2 vertical screw holes, whereas standard reprap style senso