I've seen a DOS interface for the browser talked about on HN before. I know I've seen at least one that was really impressive but I can't find the link... it was in a comment. And it wasn't one of the ones you mentioned I don't think.

Ahhh, here ya go: https://github.com/vinibiavatti1/TuiCss

via: https://news.ycombinator.com/item?id=28804309

There may be more too: https://kristopolous.github.io/BOOTSTRA.386/

Edit: I also found this: https://news.ycombinator.com/item?id=37418424