I have a new Borg & Beck 45693/15 clutch cover which, according to a B & B catalogue is correct for all P4s except the 105R, plus Land Rovers described as "2, 2¼ litre petrol & diesel (when fitted coil spring cover assy), 1948-71". I think it must be cheap at £45!
It could be collected from Craven Arms, Shropshire, or Stow-on-the-Wold, Gloucestershire, or I could send at cost. PM me if interested.