Yeh I was thinking of going with the XR3i rad aswell or an rs turbo item as I'm told there basically the same.
I would use the original box but its a 4 speed unfortunately so I will have to ditch that. From the looks of things the box that came with the engine has the same location points for gear selectors and clutch cable so I will try and use that with the driveshafts that I already. I was just a bit worried that the standard shafts wuldnt take the power but I'll try them out.
Where did u locate the fuel pump and filter? I'm also told that the plastic inlet mani's on the zetec's are a bit of bugger to fit in a MK4.