The repop fenders I purchased from Classic Parts a few years back (2016)came with a brace installed with pop rivets. The brace was not as original but worked OK. Rivets are easily removed and replaced with a better option of your choice. Other than the rivets, I was happy with the fit and finish of the fenders.

1954 Chevy 1300 engine 235 (1959)
1955 (first series) Chevy 3100 engine 261 (1957)
1927 (other brand) Model T- engine 327 (1968)