Larry Gravestock of ATA fame made barrel bending a norm. Goggle him or see the ATA Hall of Fame for some of his accomplishments. He was also a great flyer shot.

I've a friend who has a 30" 28ga. double w/the barrels bent upward for just the reason(s) you describe. I can ask him who did that work, if you like. It was done so long ago that I can't recall who did it for him now. FWIW, he has used the gun extensively since that work was done, inclusive of some S.A. dove shoots and never looked back.