Need to download Android Apps using an existing script that needs changes

I am using script from OpenGapps and APKcrawler repositories (here - [login to view URL]). While I am able to download apps that are part of OpenGapps package, which covers all basic apps from Google, BUT I need to add other Google apps for it to pull from various sources that are already well configured in the script (APKmirror, APKpure, etc.). Not only other than default apps from Google, but basically any Android app by providing its package name in a separate file. It should be easy for me to specify package name of the apps I want to download. My understanding is that APK crawler can fetch the apps for me from various sources, as given here too ([login to view URL]). So, how do I add more apps that would be downloaded by script, besides the Google Apps that are already being successfully downloaded. So, summary: Running the APKcralwer script as it is, or OpenGapps script as it is, gets me latest versions of all default Google apps, but I just need to download more apps that that. My budget for this is up to $50. Thanks! [Edit: My budget is $30-$50]