Hmmm... interesting, I hadn't realized that kero burners where hard to get. I had planned to get a couple myself in the next 6 months or so when I get around to rebuilding my stove so will have to watch this thread .
I understand that they are still used in large quantities in India - don't know if that will help you (or me!!) in any way.
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence