if dolphin used the .tar.gz compression it would keep all the file permissions intact as it is saved.
i.e.
upload dolphin once to a server, set all permissions for the install in cpanel public_html root select all and compress in the .tar.gz format, this keeps the file and folder permissions intact.

use that one .tar.gz file to install as many times as you like on as mant sites as you want, all you'll have to do in the roll back of the 5 file permissions after the install.