Homebrew PCBs

My TV Typewriter project is getting close to the finish line so I'm working
on lining up a new project.

 

What I'd like to do next is a replica of the SOL terminal prototype that
appeared in Popular Electronics in July of 1976.  I have the artwork for it
here:

 

http://www.sol20.org/articles/img/PE_SOL.pdf

 

As you can see, the quality of the scan is pretty lousy.  There's no other
sources for this that I've found.  I can clean it up manually with Photoshop
or Illustrator (and in fact have started on the former) but that will take
hours (months, probably).  I'm wondering if there's a better technique than
endlessly using the rectangle tool to remake the traces and remote the
'noise'.

 

I expect there will be other challenges, being that this is a double sided
board.  There *isn't* a way for a home PCB maker to do thru-plate without
third party help is there?  I don't want to send this off to a board house
because of the likely cost but also because that's not how a hobbyist would
have done it back then.  Since this artwork was sent to those that wrote in
for it, I'm assuming they just created it as a two sided board the usual way
and then soldered in the connections between sides via ICs, jumper wire,
etc.

 

I also don't want to completely redraw the thing.  For me, that would lose
the spiritual connection to the original artwork.  I'm trying to leave as
much of it as original as possible.

 

Anyway, thoughts and suggestions here are most welcome.