Also I doubt he'll remove any regulations. That's not really even in his ability to do, unless you're talking specifically about executive orders (Biden rescinded most of Trump's when he entered, so it's probably par-the-court for ever president going forward now).
If he stops funding Ukraine, it will all just go to Israel instead. I don't see him being able to stop Israel. No one is that powerful. If he does, the CIA/Mossad might try a non-staged assassination attempt instead, but I don't give him that much credit.
Honestly all I care about is him freeing the Jan 6th political prisoners. Although I bet the current admin will do that before they leave to take credit and control the narrative, just like Assange.