Not to make light of the situation, but anyone having double-digit Reseller signup should be in a position to pay (at least minimum wage) for manual setup -- no?
To create a step-by-step Template for someone to follow and allowing even a half-hour for each setup, would seem to be the solution for the moment.
As there are some steps that cannot be completed before others and/or a certain sequence to follow, can anyone mention another Control Panel that does this? I keep thinking that although a Control Panel is nice, it cannot do everything required by a good SysAdmin -- nor should it.