Yeah, I have to agree with Vern, unfortunately you are likely to have lost the majority of the data (at best) and would essentially be throwing money at the possiblility of getting some of it back...
TBH, it would always be CONSIDERABLY cheaper to buy the best backup utility (or even just use NTBACKUP..!!) to back up to a separate physical drive.
Failing to run backups could be seen as the data not being of much importance... My highest priorities in a server environment are: disk space; Exchange space/limits; backups; AV; UPS, updates and RAID status checks....
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I've seen the light... It was green, flashy and attached to a Network Interface Card...
Whenever someone says "You can't miss it" I invariably do...