I've seen them in the flesh and they are proper hefty! Should prevent sill-dings no problem as they are as wide as the wheel arch lip. Nice detail for the hi-lift jacking point too.
I'd still prefer galvanized but thet's just me

1985 Oettinger 3.2 Caravelle RHD syncro twin slider. SA Microbus bumpers, duplex winch system, ARC 7X15 period alloys