you're right that is mammoth task.

lot's of that old stuff is being rereleased now
like old plus 8 tunes from speedy j etc

i suppose labels like
rising high
magnetic north
peacefrog
axis
djax
disco b

or am i still a bit too current.
i remember listening to the outer limits on kiss and colin favours show and one of my mates used to religously tape them so we could listen back.
but the names of the artists and label just sailed right ovr my head in those days.
however ,i did tape one show when they played the demo of digeridoo by aphex twin the fist time from a cassette!!!! i was obsessed with that track for ages afterwards!

maybe somebody else can be more specific