I would cut out a square shaped hole outside of the footprint of the feet of bottom of the radiator support, then butt weld a square patch in place. Drill new holes and you are done.
This will retain the proper height relationship between the crossmember and the radiator support to ensure proper front clip alignment.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission