on the first step of the Data Assist wizard, you can specify the page name, for example:
for the admin version of the pages, set them to be created in a sub directory by adding the folder name in front of the page name:
When creating the admin pages, select to create the insert, update and delete pages as well
when creating the public pages, do not set a folder name in front of the page names to have them created at the site root, and uncheck the option to create the insert, update and delete pages so that only the search and results page will be created.
you will need to use security assist to protect access to the admin pages, this will be the same in security assist 1 or security assist 2.