re: Construct a realistic playoff team under the following criteria.

It's pretty hard to do unless Zion/Ingram rise up and drag us there. The biggest missing ingredient is a lead guard. Trading Jrue makes that an even bigger need.

Drafting seems to be the best way to fill that spot, someone like Lewis at 13 or Hayes at 7/8 if you can trade Lonzo for a 1st and Hayes falls that far. But how many rookies are lead guards on playoff teams?

One alteration I would make to your scenario is allowing Brooklyn.

JJ for Joe Harris S&T and 2nds is the JJ trade I think I like most. A S&T doesn't seem like a ton of vlaue, but Harris gives you a longer term JJ replacement which seems like a better piece than a lot of the other things I've seen.