Thanks Paul.
No the radiator does not fit where it began. I've moved it down a notch on the shrouds and will get a Morris 1100 expansion tank, and a pair of 9" fans.
One problem I did not think I'd face is that the bonnet does not fit the curve of the body. I will have to tension the diagonals and then brace it to keep the new curve. I will post a pic but bucket took 3 hrs for one upload which is this, my first "power bulge" as the front carb (SU hs2) on the mk2 manifold was bumping the bonnet.
Also the whole body seems sloping to the passenger side, so I'll probably just shim it.