Sorry, guys, but this still is not crystal clear. I think I get that there are a total of THREE pieces; the outer stainless piece (shown on the left in meric's post above) has an inner part with threaded sleeves, not shown. The part that is visible on the interior of the car is the painted piece with the bent foot shown on the right in meric's post. The stainless piece with insert is available in repop; the painted part is not.
I believe that I have all the corresponding parts from a '40 coupe and a '51 Victoria, but they're 200 miles away so I can't look at them right now. The interior part on the Victoria is also stainless, which I'd prefer. For my application, which is patterned on the '42-48 convertible top but chopped to the stock '40 top height, the actual '42-48 divider bar pieces will be too long and will have to be cut by the same amount. Are the cross sections of the '40 coupe pieces similar to those of the '41-48 parts? We may be able to cobble something up from the stuff I have.
Thanks for your patience, those of you who have responded so far.