The jailing of Mary Sue Hubbard on conspiracy charges in 1981 set off a power struggle within Scientology that was won by the Commodore's Messenger Organization, a group of mostly young Scientologists – many of them teenagers, some of them as young as ten years old – which took over international Church management by the end of 1981. That year a body called the All Clear Unit was set up at Gilman Hot Springs under the management of the then 21-year-old David Miscavige. Its purpose was to make it "All Clear" for Hubbard to come out of hiding. They were sufficiently confident of success that, in 1982, a mock ship called the "Star of California" was built at the property as a present to the nautically minded Hubbard. It is a full-size replica of the deck and interior of a three-masted 19th-century clipper ship, constructed at a reported cost of $500,000. Scientology was able to reduce costs by using its own staff as labor, paying them less than $20 for a 100-hour week.