While I don't understand entirely what you are doing, one suggestion that may help is to download the "Band-in-a-Box and RealBand 2024" file from your download page, run it and only select the Band-in-a-Box component. That will only install the main Band-in-a-Box program files.
Not only do I have limited disk space, but I also have limited internet downloading capabilities.
That is why I had my BIAB program snail mailed to me.
I'm a little confused. Are you saying I can only install the "Band-in-a-Box component"
via downloading from the internet and not directly from the BIAB SSD that was mailed to me?