So your main goal is production work, pins make sense for that.
Auto home all axis with a z touch pad, gets you everything you need. Set your cuts to start below the z home by whatever thickness your touch pad is. You really don’t want to start messing with marlin.
Thanks for the compliments. Wish some other forums out there would try the machine before they keep telling people it has entirely too much flex to be of any use….so discouraging. So many other forums preach if it isn’t solid steel it can’t hold any sort of tolerances, their loss I guess.