How to replace 94 Achieva QUAD 4 Engine

I have a 94 Achieva I'm working on for a friend. The current engine is bad and needs to be replaced. I was wondering which is the best way to go about this? Is it easier to take engine & trans out together? When taking these out the bottom does the whole suspension have to go with? Are there any tricks to getting these out? So far I've just gotten all the electrical connections off, alternator & starter.

I've replaced many engines, but never worked on a QUAD 4 before.