I found it all over!  ;D  It wasn't a kit.  I sourced all the parts via various sources like Amazon, eBay, and even china!  I have a complete bill of materials for anyone interested in building one.  The print volume is 8x7x7 - fairly large for what this printer costs to build.  I have ~$600 in it.  Print quality is as good or better than any other printer I researched.  Very simple and effective design.

I sense it may become indispensable in my model building!