Calling all corner carvers!

Question,
I should have had the Car Tool fender braces installed when I had my car completely apart and installed new inner fenders. I hate to go in there and weld in the braces and mess with the new paint. What if I would bolt in the Car Tool fender braces, that would be a lot less invasive,,,
Or would that not be effective?
I did weld in a Car Tool lower radiator support while the rehab was in process. Should have done the fender braces then but did not. Any recommendations?