Why?  Im not a creator of 3D and Im only a hobby programmer for other apps here, but I love this aircraft, and I tried so many things to get the other 2 engines to run with a lot of tweaks with modelconverterx, Blender, 3DMax etc but i spent to much time for this :-)

The "easiest way" was to convert it with this panel and interior but I changed some  values within the flightmodel.txt to get more realistic values from the original airbus, I used some reader you can find on airbus websites.

pros: you can start the aircraft anywhere from gate ...

- all engines are running

- you have exterior view when you move out from the cockpit and you can see the wings etc.

- you can import simbrief flightplan

- all systems almost should work if you own asobos 747 8i

- showcase cameras works almost perfect to see wings, engines etc

cons:

Its not an airbus inside

sometimes on ground you see the shadow of the "virtual cockpit" but if you wish its easy to change this if you dont want it within the model folder.

textures sometimes strange,

exterior lights not working so far. perhaps i find a way within msfs developer.

on climb there could be for short time sound engine issues but it will gone.

Happy flight.