I’ve uploaded all of the files I used to build the TXn to GitHub. This includes all of the assistive aids (build guide, stencils and frames, alignment blocks, …) and things like the panel files and BOM.
Having built a bunch, I can credibly say that the TXn is a pretty fussy SMD build with many opportunities to fail. If you are interested in building your own Nearness, I highly recommend you consider the 3HP version. The layout is cleaner and the assembly is much simpler. Not that making a TXn is impossible - just a PITA. 
You can find my files here: https://github.com/bpcmusic/TXn
Long live open source!!!