I loved those gold box games. Wanted to get into FRUA, but it just didn't work for me and I didn't have a lot of time to really dig into the details.

Those game editors are tough to build. I worked on Bard's Tale Construction Set and it had a lot of issues. My claim to fame is filing the bug report that led to cut & paste being added to the scripting editor.

It's a lot easier to use if you just find and download adventures made by other folks --- there were a fair number, but not sure if they're still around (I hope so).