I can officially say that with the Transit Connect and 2.0 Duratec motor, there is a lot of cross platform compatibility from the Focus that I have done the testing on.
The Cosworth Intake manifold will not bolt right up to the throttle body. To overcome this, I bought a Steeda throttle body spacer. This will bolt stright up to three of the 4 bolts on the Cossie manifold. I can drill and tap the fourth one with no issues. The Steeda will bolt right up to the Transit Connect throttle body. I will have to relocate the reservoir for the power steering fluid, but that is customary on the 2.0 on all chassis.
FSWerks CAI works no problem. It does come into contact with a feed/return line with the transmission, but i will be replacing this with a SS flex line.
Massive water pump pulley bolts right on and is underdrive.
All FSwerks VF engineering motor mounts bolt right up
FSWerks engine cover bolts right up
FSWerks strut tower brace bolts right up with a little bit of maneuvering for the brake fluid reservoir and one engine heat shield
Massive EGR delete bolts right up
FSWerks cat less header bolts right up
SCTX4 can support reading and tuning my ECU
There's probably a few other bits and pieces I am missing....however there is also the addition of a universal ZEX 55 shot nitrous being added with the Innovate Nitrous management system.
You want pics? I cant wait to provide pics.