But also the Russian MO has never been to do things where it's not obvious they did it: the spate of critics of the Russian government dying by falling out of windows isn't because they lack creativity in assassinating people.
> has never been to do things where it's not obvious they did
They could still shot them or something like that, the window thing still grants them some plausible deniability. e.g. the ship that (unclear if intentionally) damaged the cables last year was Chinese.
You literally just described a program of falsifying documents! If you're buying and operating a ship, then to have "no ties to Russia" while using Russian money, someone is showing up with forged paperwork or some off-the-books bribes to make that happen.
Drawing down those sorts of sums from a country's treasury isn't something you can actually just "do" - people have to take actions, funds transferred, meetings held and operations authorized.
You are describing a system of resources which likely does exist, but is by no means easy to use or acquire and would not be expended unnecessarily.
> funds transferred, meetings held and operations authorized.
It's Russia... I doubt there would be a lot oversight. But they might just as well get the money from one of the "private" companies run by Putin's cronies with zero direct involvement by the Russian government.
Anyway, I still think that acquiring the ship itself is still a relatively trivial problem to solve.