Pointless to trade for him then. Nets not only have the cap room but they can amnesty Outlaw and sign Jamal Crawford, Jason Richardson, Richard Jefferson, Nene, David West etc.
Howard, West and Williams would be the route I'd go with whoever you can trade Lopez for. Up until signing Howard you'd have Lopez, West and Williams. Just seems logical given what the Nets could get for Lopez and that West is the perfect compliment at PF when you have a dominant center. Thinking Dwight and Lopez would be a poor defensive combo trying to guard a PF that can shoot. Dwight and Nene would be poor in general because both need to be down low. Lopez would net an awesome addition or two to go along with Howard, West and Williams if that's really where Howard wants to be. They would have the cap room to sign him without giving up Lopez, two 1sts and taking back Hedo.