Rockauto are US based, and with shipping is works out at just under 250.
However, I bought a radiator from Germany for my G-Wagen, it was damaged and caused to end of grief getting my money. I also had to pay MB twice for fitting & removing, so, no more overseas purchases of that ilk for me.
If anyone could find a UK based seller that sells OEM, I would be delighted, I can't find any..