First, see if you can create a restore set from within the ACER... that should be possible UNLESS the Acer is too badly damaged... It is possible your broadcast engineer made the disk set when the computer first arrived.
But even if you did not do that when new, it may still be possible to create the disks now. If not, call Acer and have them send you the set.
Expense? You can never know. Lost data. Valuable documents. Materials required for your Radio Station license renewal?
It can all become really expensive, depending on the use of the Acer... and the cost of having it down. The set of Acer discs, if still available, will be under $40 with Fed Ex shipping... so it is worth a call to find out...
A tech's time, business level, will run $65 to $85 an hour.
But there is no free lunch. You might be able to get a tech shop to rescue in exchange for free advertising.