You'll also need a R154 driveshaft... if you're installing a R154 or course. You'll also need all the electrical components including the wire harness (which will need to be lengthened) and ECU.
The JZ swaps are more involved than a 7M to 7M swap and I don't advise them for the inexperienced; It's nothing killer in my opinion, but I've seen plenty of people sell off their swap project, half finished, because they couldn't hack it.