His dad expects him to be ready by September. But what athlete has had a full ACL recovery within 6 months? (other than Derek Anderson). I know it's a common injury now but seems like the timeframe is more 9 months to a year.
He could solve a lot of problems (rim-protector, rebounder) but it's a huge gamble. I doubt this dude is going to be very motivated to return to the court with the NBA in his future. If you could get him with an incentive-loaded NIL deal then OK. Doubt he'd go for that though.