nvidia legacy 304 drivers not in beowulf

[Bob Frazier]

I recently purchased an older computer with an nvidia adaptor on-board. 
It is adequate for doing development, and I'm running it headless.

However, to get the on-board (NVidia) sound to work, I think I have to 
install the nvidia legacy 304 drivers also.

I noticed that the packages I need are in ascii and ascii backports, and 
attempted to load them from a system that had ascii, by getting the URLs 
and using 'wget'.  But when I tried to use dpkg, it appears that 
glx-alternative-nvidia is "too new", by a very slim amount, and I get 
the following error:

dependency problems prevent configuration of 
nvidia-legacy-304xx-alternative:
  glx-alternative-nvidia (1.0.0) breaks nvidia-legacy-304xx-alternative 
(<< 304.137-7~) and is installed.
   Version of nvidia-legacy-304xx-alternative to be configured is 
304.137-5~deb9u1.

Rather than work around the package issues and "just hacking something", 
would it be possible to update this package so that it works with the 
newer glx-alternative-nvidia and then add them back into the list of 
non-free packages?

FYI this computer is perfectly good and simply has an older CPU running 
at 2.3Ghz, which is adequate for development and building SD card images 
and other things I need Devuan Linux to do, ESPECIALLY when I do not 
have a large budget for computer hardware (the last year has 
significantly reduced my income).  I don't want to go through the 
obvious mess that "downgrade to ASCII" would require.

thanks in advance