No, it's not that major, i know he had the clutch out but no more than that, i honestly can't remember exactly how much but 2, maybe 3 hours max., taking into account he was investigating.
He had it for 3 days because of the wait for the detent wheel, which was then delayed so i didn't bother with it, but it maybe worth replacing that too while it's all apart as i think it's a common issue, but that's obviously your decision!