What about KG and Pierce to Minnesota for:
Pekovic, Derrick Williams, a 2013 1st, and a 2014 2nd round pick?
Keeps them together, and puts them with Love and Rubio. Minnesota makes a run at Monte Ellis, and they'd immediately be a top 5 team. Minnesota has very little on the books (Love at $13M) with I think a $35M total payroll so with KG's 11, and Pierce's $15, (and Minus $9.5 in outbound salary) they'd have enough to offer Ellis $10M/per, and could pick up Pietrus/Pryzbilla back up types very cheap.
KG gets to win a championship with Minnesota, Love is happy enough to stick around, and a former DPOY is there to cover for Rubio's defensive ineptitude.
Meanwhile, we get two good young players to either put on the roster, or with whom to rebuild; a shot at Steven Adams in 2013, and the ability to draft a back up PG with our pick.