Regarding 80 columns, what about using ACE80-XL cartridge? It's very rare but everyone can put the attached rom on a multicart, no additional hardware is needed.   Otherwise there are software solutions, I think slower, like Easy 80 by Antic or Editor 80 by Atari Magazin (attached with instructions).   EDIT Updated ACE-80XL rom. Previous version didn't work on real hardware. The updated version works (tested with AVG Cart). EDIT 2 Added ACE-80 manual and techical no
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