Glad it helped. What would be easier would be an alternative version of the QXL.win file to download with a selection of games as microdrive and floppy images pre-loaded in a single folder and a program to select and run them. Then all you need to do to add a new one is just drop it into the games folder. Just like you do with the Next itself.
I have my win1_ set up like this. Maybe I can tidy it up and make it available for download.