The Wiki talks about replacing some of the files with his patch which are specific to NETMF v4.2 QTE1 and the Netduino+ 2 firmware v22.214.171.124.
In all honesty, I've been trying to build the Netduino+ v126.96.36.199 over the latest NETMF v4.2 QTE2 today and I keep getting MSB3073 errors (just two in my case though) for my N+.
Reading over your Build.log it seems like there is a log of mismatch going on though - perhaps applying the Wiki's patch over the 4.3? I'd suggest maybe starting from scratch using just his provided firmware and recommended NETMF v4.2 QTE1.
Sorry I couldn't be more help, but I can't compile the source either.