I am looking around for some advice here. I have been asked to make a script that automatically creates a user, home directory, sets the shell to nologin, downloads a tar of scripts, installs said ...

You could probably edit the files in /var/spool/cron/crontabs directly, then restart the cron process, but yeah, just use crontab -e.

The crontab-ui is very user friendly. How to install crontab-ui for remote use Your email has been sent Jack Wallen walks you through the process of installing a web ...