Bad idea if you live in a country with extradition treaty with the US.
You could end up in gitmo for "providing material support to terrorist activity", because that is technically what you are doing, money is material support.
I can't tell you what to do, but like if Iran actually manage to do it, it would be the best excuse to get Iran obliterated from the map, and most NATO countries will probably help with the invasion of Iran under Article 5, since that's effectively like a 9/11 v2 (not in number of deaths, but in terms of being able to justify a foreign war).
Iran performing the assassination is 100x worse than, say that nutjob in 2024 doing it. If trump die from that kid's gunshot, there wouldn't be much happening, but if Iran did it? In this tense political climate where 1/3 of the US population are in a cult? Can you even imagine all the lynchings against Muslims, Arabs, and anyone who "looks middle eastern"?
Any soldiers or national guard that was bordering on "hmm, is this actually legal", will now not even question their orders. Being anti-trump in the aftermath of this hypothetical assassination would be treated as almost as bad as supporting al-qaeda.
Its not a good idea, IMO.