If you want to do the engine swap yourself, I recommend that you work with one of the venders who have the most experience doing this. Talk with Dave at DDM Works or Dave at Werks. Either can be a great source of knowledge and parts. The key parts are the wiring harness and the ECM software.
If you call them, either will find the time to talk with you.
Werks is selling a do it yourself kit and DDM is working on one .