No experience in trying both together, but having put a 2.3 in my 73 Pinto I'm inclined to say no. Many years ago I replaced the throwout bearing in my brothers 72, 1.6. As I recall getting the transmission in/out was not difficult. I remember when I pulled the 2.0 to install the 2.3. I think I had the engine out in 20 minutes. So, I can understand why you would like to install the engine/trans as a unit, but doing in two steps isn't that difficult.