Oh, that metal part.
Well, there is a .sldprt here: Index of /TAZ/2.1/production_parts/manufactured_parts and a .pdf drawing and a .dxf here: Index of /TAZ/Guava/production_parts/drawings . If you want to print it, there is an .stl here Index of /TAZ/2.0/test_parts/devel_test_parts . You might find this thread useful if you are cloning that y-end Y-Axis End Mounting Holes Wrong . What I do in my builds is use the old printed y-ends: http://devel.lulzbot.com/TAZ/2.0/production_parts/printed_parts/stl/y_motor_mount-1.1.d.stl .
Ok, cool.
Individually, you mean. The option to purchase all the parts together is already there.
Because you want to support all of the super awesome support on the lulzbot forum ofc. 