Simple answers.
Try DiskSalv 3 free from aminet it has saved All amiga users. If you post a copy of your user-startup from the "s" directory path "SYS:s/user-starup" it is an ascii text file so can be inserted into your post. The guru's that read this will be able to tell you the hard coded paths you should look at.
It would be a good idea to get a hold of local user group or individual most will assist you for a good coffee! If you post where you are located (general) you may just get a reply.
Hope it helps.