I think you are close to what the issue is. The fuse panel more than likely has an issue. That burning smell is not normal and you need to find where else you have melted wires.
What I suspect happened is when the insulation melted on the wires that touched the hot pipe, they shorted out the fuses or even melted the fuse panel. Unfortunately, any time this happens, you need to take a test light and find out what has power and what doesn't on the fuse panel. Whatever does not have fuel you need to replace the fuse and or wiring until power is restored.
The vehicle is not a total lose, it is just going to take some time to go through all that you need to and restore the power. Hopefully it is just fuses but again, there is no way to know without testing.
Here are some guides that will help with this type of testing:
Please let me know if you have more questions.
Friday, June 14th, 2019 AT 2:53 PM