[Computer-go] Scraping lower-ranked games from kgs

[Arthur Cater]

Hello,
I would be interested for research purposes in getting lots of game sgfs of
lower-ranked players, to contrast with the high dan and pro games that 
get put into collections. Even kyu games. I was thinking of getting them
from kgs archives.

I wonder if anyone already has a script that could (or could be easily adapted to) do this? And would they share?

Thanks,

Arthur