The skill needed is really dependent on the Wrestling of the golem which, in turn, is dependent on the tinkering skill of the person who made the golem.
The general rule of thumb is 80 skill however 70-75 isn't out of the question, especially if the golem has less than 95 or 96 wrestling.
It will help us help you Masscre if we know what the exact issue you are having is. Are you not gaining? Are you getting whacked around by the golem? Are you damaging the golem and want to know how to stop it? Etc.
XII