As many probably know already, i have been poking on cleaning up some code that has been floating around the web to extract individual modules out of common legacy bios images.
It's called bios_extract and it should be able to extract award, standard phoenix and ami bioses. It contains code and information retrieved from code of both Anton Borisov and Veit Kannegieser, and the lh5 extraction routine was stripped out of lha.
The tree can be found here, the git-uri is also available from this page: http://cgit.freedesktop.org/~libv/bios_extract/
Simply point it to a bios image, and watch it clutter up your working directory.
If it doesn't work for you, you know where to find me :)
Enjoy,
Luc Verhaegen.