Lede etc. on WRT32X is possible by manipulating some setenv’s in venom’s u-boot. You need to connect via USB2TTL/Serial and follow the instructions from intelliboy under the wrt3200 <> wrt32x thread (see below). My machine is up and I can deploy a WPA-EAP wifi network, which was the main purpose. For now I am using the lede-developers snapshot 12.12.2017 but I’ll flash mcdebian, as soon as have some more knowledge about their webgui.
I short: intelliboy explains the way back to stock wrt3200, so you take this u-boot commands and then serve lede via tftp. boot - baim!