X87HatchX

I have a 1987 Civic hatchback with a D13a2--Carburated, I want to convert to a D16 DOHC or SOHC Fuel injected or carb. I have a 4-speed tranny currently and i want to update to a 5-speed. Does anyone know what i will have to change i.e. mounts, axles etc.
Any information will help because i still have not taken out the dying D13a2.
I'm a newbie so the simplest conversion would be best, so i could gain some experience.
Thank You, and forgive me for my ignorance.