OK, here is the estimate:
[1] The instructions for the self-installation of the mod
$60

[2] The zip package that contains the new mod, and ready to install by the installation script.
$30

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[1] Assign the paypal email address of the contest to the reply-to address of both "Transaction Notification" and "Prize Notification"
Price:$40

[2] Issue Free Ticket ID
Price:$60

[3] Send a free ticket ID to a player (Optional)
It include a new email template, which set up the initial title and body of the Free Ticket notification email.
The contest owner can still edit the title and message before sending.
The reply-to address will be the paypal email of the contest.
Price:$50
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