There it is:
How to install ClassicPress in Softaculous installer
BEFORE INSTALL: Make sure your hosting supports PHP 7.0 and above, recommended when installing ClassicPress
Open Softaculous and search for ClassicPress in the search bar, then open ClassicPress summary page - As you can see there is an option to install:
https://d.pr/i/7GZzAD
There are two install methods, Quick Install and Custom Install:
https://d.pr/i/hi6EEA
Quick Install instructions:
As you can see from the screenshot below, the only information required for this method are Domain, Installation Folder and Admin Account.
https://d.pr/i/x7s0JE
After entering the info just hit the install button at the bottom of the page and you will be redirected to:
https://d.pr/i/sfWLqp
SUCCESS!! You have installed ClassicPress from Softaculous installer!
Custom Install instructions:
The Custom Install is recommended for advanced users who need more set up options.
Just select Custom Install from the drop-down and you will be redirected to this:
https://d.pr/i/4BaHhZ
Here you can fill in Software Setup, Site Settings, Admin Account and Advanced Options (DISCLAIMER: this is a test site, created on a testing free hosting, options shown may vary according to the settings your hosting allows for Softaculous), then all you need to do is hit the Install button at the bottom of the page, again, and you will be redirected to this:
https://d.pr/i/2B8fym
SUCCESS!! You have installed ClassicPress from Softaculous installer!
Again, let me know if it is ok, or you need something else… or whatever.