A few things come to mind
1/
Thermostat housing,
the EFI housing comes with 2 sensors, one for the temp gauge and the other is used by the ECU.
2/
I think the Ignition coil is different (2 pin connector)
3/
possibly a different throttle cable.
4/
Fuel pump relay, if it doesn't come with the EFI wiring
5/
Exhaust header pipe with the fitting for the O2 sensor
I think I have seen most of what you need on TaoBao
Good luck, I hope your conversion goes well