If you don't like the idea of working on yet another Amiga port of netsurf, there's always other fish in the sea. Maybe you would be more interested in porting Amaya (the w3.org HTML, CSS, and SVG editor and browser program) to your choice of interface.
Looks this isn't going to be updated anymore, although the mailinglist is still full of bugreports. Better choose an active one, like netsurf...