If you check eBay USA there are currently 17 listings for "New stainless" bumpers for Sunbeam (2 being from Elite Bumpers) and all coming from Vietnam and likely from the same seller (but with different handles). Feedback I've gotten over the past few years is mostly negative: flimsy, very difficult to mount, holes weren't drilled correctly and the bumper ends drooped way down on the ends. Most guys said they looked decent once on the car but wouldn't recommend them.
I saw a pair of Vietnam bumpers for myself when a friend attended a car show I vend at every year. They looked nice but were very, very thin. The ends did droop — but not as much — since he re-drilled and bent his OEM brackets. He suggested I pull on the ends to see how flexible they were. I easily moved the ends upwards about 2" and could have gone further but didn't because I didn't want to possibly distort them. He was disappointed, but satisfied, and didn't regret the purchase since he was looking at well over $2k to plate his bumpers and overriders.
I wouldn't buy or recommend them.