Users on the forums aren't your customers, they're your open source collaborators, and requesting that kind of access can put you and them at high risk. Our standard comment about requesting admin access is the following: While I know you have the best of intentions, it's forum policy that you not ask users for admin or server access.
If someone wants to offer paid work, then other channels should be used, for instance Have removed your response above (it’s visible only to moderators).