As I recall, one of our members is/was looking for a TC radiator shell. There is currently one up for auction on eBay at:
http://cgi.ebay.aol.com/aw-cgi/eBayISAPI.dll?ViewItem&item=273147069
It is described as:
MG TD TC - Original Chrome Grill with the MG medalion and Slats. The chrome on the Grill is in very good condition , there are some small dimples on the left side and a dimple on the upper front right side. The False nose is original and has some small pits in it, from a probably not so good chrome job. The MG medallion is in very good shape. Im having my spare grill restored and will be replacing this one. Email if you have questions or need more pics. lcastle@gceusa.com. Winner picks up shipping.