Here's another possibility;

http://cgi.ebay.com/VICTOR-BRAZING-W...QQcmdZViewItem

Torch looks like a Victor J-28 w/#4 or #5 tip. I'm always leary of used, but this set is definately inviting.

And here's an additional (size #1) tip for the above torch;

http://cgi.ebay.com/Victor-acetylene...QQcmdZViewItem