Just bought a "Grille to Rad Support" from Classic Industries.
Looks good & fits good. I have bought from them in the past and so far I am very satisfied with the quality. http://www.classicparts.com/searchprods.asp

This one sells for $134.95 less 10% $13.50 for Stovebolt members
$121.54 for us bolters.

Product # 61-712

Hope this can help you out.

1951 Canadian Chev 1/2-ton Shortbox