What are the pitfalls? I know the Connect is Focused based but what difficulties would the convertion face.

From what I can work out part or all of the loom is required from the Focus as are the front rear hubs/brakes. Should the engine and box drop straight in.

I'll be using my current 3 year old 75bhp TDdi which is in as new condition. I would have like to do a Focus RS convertion but there is a 4k price difference between a damaged ST and the RS.