I doubt it would make much of a difference - money is like water in politics, it will find its way in. Instead of the money coming in as donations for future elections it will be about promises of huge salary for the job after you hit your term limit, unless of course you only want those who don't need to work hold our elective offices.

Ah, but the fourth item on his list is to forbid outgoing Congresscritters from those jobs for half a decade. At the least, he (or someone working for him) seems to have considered that.

How do you enforce that?

My biggest fear of term limits would be the deep state respecting legislative oversight even less than it already does. A 2 term congressman can be waited out, but a 5-10 term congressman can really dig in.

Maybe, but it would also be a huge blow against the power of congress, which could only strengthen the executive. Without consistent leadership, congress would be even more feckless than ever.