love the idea - hopefully the structure will still be there once it is sanded down / levelled!
It should be ok, seems to be quite a bit of material there, only where the burns went all the way through is it a bit thin

Polished bolts and screws today and some of the metal railing. I was so surprised how well it turned out - had to grind down with 40 grit on some of the metal parts due to rust. Bolts were spun in a drill against 40, 80, 100, 120, 220, 300, 400, 600, 1500, 6000 and 8000 grit sandpaper in some cases. This is one of the big bolts on the sides of the cabinet:
Resurfaced railing piece + screws on the left, original rusted railing piece + screws on the right: