I may have possibly found a reasonable one. a while back I posted a travel case which consisted of a Pelican 1660 case. Although this case is rock solid it may cost you a small fortune in baggage fees because of its size.
I recently came across a Pelican Air 1637 case. I had no issues checking it in with my luggage on an international flight. When they threw it on the scale it weighed 50lbs and most importantly my gear in the case survived the 14 hour flight. I’ve attached some pictures.