Here is my GL-AR300M librecmc build (NAND):
ftp://git.librehacker.com/librecmc/v1.4.9/librecmc-v1.4.9-lts-8e1abfa-ar71xx-nand-gl-ar300m-ubi-factory.img
As usual, contains all the networking tools I like to have on my router, plus my tinyscheme packages, and OpenSSL instead of MbedTLS.
The Libre Hacker 