Even amazon.com sells tb3. As mentioned above, our Lowes here has it in gallon jugs. I goggled it and found:
Lowes.com, homedepot.com, rockler.com, acehardware.com, grizzly.com, woodworker.com, and about 65 other.coms had it.
Out of curiosity, did u use gorilla brand wood glue or plain old gorilla glue? I've never had an issue with their wood glue, but I have never used it on anything as oily as Ipe.
Scott