Yeah, I'd love Lou Williams on this team. He's exactly what we need, a legit threat to score the ball at will as a 6th man.
But I don't think the Clippers are going to entertain trade offers for him, as he's leading the charge towards a possible playoff berth for them. It'd probably require an overpay to get them to the table.
As others have mentioned, he has an expiring contract, so while that makes him eligible to be traded for with the DPE, I'm not sure it makes sense to give up the assets the Clippers would want.