Bos sends: AB and Turner (11 mil total)
Cle sends: Haywood (10 mil)
Haywood is non guaranteed so you cut him
Stretch or Trade Wallace to philly with a pick
18-20 mil opened up, Plus the 6 mil already available, brings you up to 24-26 mil in cap
Enough to add Harris and and another 10 mil + player .
Still have the Contracts of Amir and Jerebko if you need to make a trade .