guix:
It was probably a small test file just to demonstrate the problem...
Indeed 
I made up a couple of quick text files, one with strings, the other with integers, to see if I could make the darn thing work!
And when I finally made it to work (again, I did not do anything different from last night, today it just worked) it also works with the "real" thing.
It turns out that I was able to reduce the actual table, by organizing the data in a different way to a mere 400 bytes or so, well below the RAM restrictions.
Small size still, probably by your (and my) standards. 