It should be "You'd think if we don't have books, we'd have computers."
I don't understand your question. I don't know what the "w" is for. Did you mean "we"? Do you understand that "have" is the principal verb "have," not part of a modal construction like "would have gone"?
What exactly is your question? What do you want to know?
Mrs. Webster: [Class snickers] I'm sorry Miss Allen, but we don't have enough books for everyone. Now I wouldn't want to single you out and give you one, we wouldn't want the other students to think that you're more important than them now would we? Britney: [everyb