Good stuff. Thanks.
So, at what point do you think this fire broke out? Do you buy into the tires catching on fire at takeoff?
Personally, I think it is most likely terrorism. The smoke theory is a good one though, and in that category I would lean more toward avionics. A tire, especially a nose tire (because they rarely catch fire), is unlikely to cause flight deck asphyxiation.
Trying to get in head of pilot
If I were bringing a plane with electrical outages and none working landing gear carrying hundreds of passengers
1. Land at nearest airport or return to original
If that is not an option : plan B
2 after I’d flown around a while to dump/use fuel
3. Not land in ocean where plane would sink
4 Stay away from heavily populated areas to diminish ground deaths
5 Find a nice sandy beach to belly land on