(1) Flatten out that bend!
(2) Spray the job with "aluminium" Rust Guard if you want an original look.
(3) When dry, give it a shot of lithium grease spray (avoids stains)
(4) Obviously, align tongues on lockdown bar . . .
(5) Adjust bar height/seating snugness using the two brass screws.

That's what I do - always works wonders.