Steel wheel, SBP

Hi.
Yep they are disc on the front These are factory, but a slight cheat in that the calipers are later model. - see pic below from when I replaced the discs and rebuilt the calipers a few months ago.
Don't have a pic of the outside of the drum but I'll get one later (this evening I hope).... suspect they will be the same as a US drum.

The pic below is the standard Aussie wheel mounted on the rear, I could run this lottery ticket that was folded double around the entire thing, so I suppose the bolts are holding the wheel very central in this case.