If you don't want to cut your hood get a JDM B16A, B18C1 GSR/B18C5 Type R. You know you'll need motor mounts etc. Also keep in mind 88-91 Civics/Crx's are cable driven. I have a Jdm B16A & love it. Not the most torque but I'd drive my Gsr when I want more torque.
Post pictures when you get it. One suggestion get a Si model.