Gidday!
First up, you're probably not going to pull off a RWD swap easily or cheaply. It takes a looooooooooot of custom fab work and a very healthy bank account. To start with you've got to cut most of the firewall and floor out and make new panels from scratch, not to mention all the fuel and wiring systems to get it to work
Jump on Youtube and search for BodeVision, he's sticking a LS1 V8 and Pontiac rear end in a '88 Honda accord. That'll give you an idea of how much work is required
That being said, if it was me and my car I'd find a wrecked RX8 and stuff as much driveline stuff in to the pro5 as possible, because a modern 323 brap wagon would be amazing!