Depends what the big three sign for.
If Beasley is wiped clean, they have 800k for Chalmers and whatever James Jones' buyout cost them. I think like 1.5mm, but I could be wrong. Then the league holds 450k for each spot up to 13 spots that they haven't filled.
So they have 1 spot filled with chalmers. Plus 450k*12. So they have 6.2mm out of 58mm counted against them. That gives them 51.8 to sign the three big boys. But the Max each player can get is about 16.5mm. That comes out to 49.5mm each, leaving about 2.3mm to sign your next player. Or, if the big three decide to start their contract at 15.5mm, they have enough to offer a player the MLE, which is what Miller could command. BUT, they would each be giving up 1mm up front plus 8% of that 1mm each year in increases (it would cost wade up to 10.5% since he is resigning.) So it would cost each player about 2mm over the 5 years to do that for Miller. AND, Miller basically plays 2/3, just like Wade and Bron.