You have a very good point.
In that case instead of NATO, then maybe the world builds some sort of coalition to take care of the problem. Those countries that want to put an end to this war can. But at the end of the day, it’s up to the Ukraine to allow to happen, but we need to start looking at what exactly it is costing each year and ask if it’s sustainable
The dark web is a pretty good bet. Going into a bar is probably going to get you arrested.
If you go through the dark web don’t meet the hit man in person. Remain anonymous (plausible deniability). Use an anonymous way to send money. I have no experience in the dark web but I’d assume there is a way to do the equivalent of an escrow account. Where you put the money in and it won’t release until contract is complete.