I *think* we could do it this way:
1. Renounce all free agents, including KO;
2. Trade Rozier; don't take back salary;
3. Get Yabu to stay overseas;
4. Trade AB + Crowder + BRK 18 for PG13
5. Fill out roster with Zizic, Nader, #2s, vet minimums and room exception
EDIT: That's how we fit PG13 this season. I haven't done the max on signing George outright but I'm not sure that it's realistic.