Sorry I couldn't be more help, but hopefully the people who did the clever stuff last time will be able to help you again, even if it costs a fortune -- only you can judge whether that fortune is worth it...
I spend a disproportionate amount of both my time and my budget in planning for the systems hardware failures that
will occur. The irony is that the better that this job is done, the less that people in big hats percieve the need for it