Use the backup
When Nasa built the Hubble telescope they actually commissioned two identical ones, because when you're dealing with taxpayer money, why build one when you can build two at double the cost?
The second one has been in a museum since then. Just dust it off and strap it to a rocket.
There's an interesting story about that: the one in the museum apparently is better than the one in space because they were built by different contractors.
Biting the hand that feeds IT
