69HEMICORONETR/TCONV
Well-Known Member
Have you checked with PG Classics on the base plate , They reproduce lots of hard to find parts, and they reproduce the base plate you are looking for, Most everything I got from them I have been very pleased with, I did get a side scoop that needed lots of body work to remove the waves in it, but it was still a very nice reproduction .
Here's the link, it is for the base plate and the Lid.
http://cgi.ebay.com/ebaymotors/69-R...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories