Help I have questions regarding a 91 crx

Hey I was wondering are the hatchback and the crx interchangeable?They look like they would be...Well what I need to know is will a hood off of a 88-91 civic hatch fit a 91 crx??Also What about the under bumper not the plastic its self but the metal will that fit a crx?And what about the headlights??And whats the best tranny that will mount up to the 1.6???Will a tranny off of a 1.5 fit a 1.6? I got a 91 crx and theres a 88 civic hatchback that I can get for a parts car but im not gonna do it if its not gonna work...Well I hope someone can shed sum light on Me....
Well
Thanx
Juan