Car looks very nice , your doing some good additions. No so sure you will be able to fit the Ecoboost Engine in there , without most of the wiring loom and modules and power train , i would imagine it would be a very large project to undertake such a task. But if you manage it post a fitting guide i'm sure people would like to see how it turns out.
I know it could be a large project, but where is the fun if it all just bolts on? The only thing that worries me is the electronics, but I have a friend who could make it work
EDIT: I was thinking of a 148 bhp 1.6 ecoboost swap, because it has enough power,and does not require complicated power train modifications