Yes, the fever on arrival wouldn't be great, nor would the combination of jet lag and other possible vaccine side effects. If possible, I would do it a week or at least a few days before you depart
Yes, but unlike a plane, it's possible to get into a van by myself. And getting into a van with others is doubling my risk of getting quarantined...why would I do that if I could avoid it? Risk management.
Just for the future, you can convert your pdf to a jpeg by choosing "export" (this is in Adobe, but others should have the option), and there will be an option for jpeg..super easy. Good luck! :-)