Just a couple thoughts in how to make the Golems even better.
Pack Instinct: Thinking if you have more than one Golem out mining they should get a boost to their mining speed. Could be because they are more productive working together, or because they are competitive to show the master who is better. (added bonus helps remove ED from the server as people would have to buy pet slot deeds)
Auto Smelt: Just Please
Stop mining when overweight: If they go over weight instead of them continuing to mine and drop single ore piles on the ground could we get a weight check on them so that if they are at say 1600 stones they flash a message "I'm overweight and tired please empty my pack". And has them stop mining until given the start mining command again.
Just a couple ideas. Thanks for your time and effort.