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District Court judge Mark Herron rejected his claim that his admissions to police could not be relied on because he was tired, stressed and cold, and was simply telling them what they wanted to hear.
Impicciatore said the father had told him she was 17, but his defence failed miserably.
Photographer Benjamin Simon Clarke received the lowest sentence.
Clarke was given three years' jail for indecently abusing the girl as she lay naked on a mattress and for taking naked and semi-naked photographs of her at an abandoned mine site.
Former Christian Pastor Dawid Volmer received a 10-and-a-half-year jail term after admitting to charges including giving the girl a stupefying substance so he could abuse her.
In an interview the girl gave to police, she described Volmer as "the massage guy" who she believed was blackmailing her father, and said because of that she had to keep meeting him.