SAPDB Crash

Hello 
 
Just a quick question:
 
I have a SAPDB 7.3 that crashed last week. I lost my log Dev Space and
all backups on the 2nd disk.
 
I still have the db software and all the data dev spaces.
 
Do I stand a chance to get my data back if I startup in ADMIN mode, do a
full backup and then restore the data into a new database ?
 
Yes, No or maybe ?
 
Thanks
 
Pierre.