DO12 USB and Custom options?

DO12 is on a hard drive that is no longer bootable. The content can be accessed externally. I have just installed Win 10 on a new HDD and want to start installing apps.
I have a USB drive but it has Win 10 on it and is used as a recovery tool.
GOAL
Copy my custom settings and DO12 from the external Hard drive to a USB drive that already has Windows 10 recovery on it.

Install Opus normally on the new Windows install / HDD, then copy the config folders from the old drive to the new one.

Details on finding and copy the config folders are here: