Put stock wheels on, get rego. Put spacers on that you need to clear brakes (most likely only 5mm or so), put on territory wheels.
Failing to see significant issue? Yes they're illegal, but you're fitting territory steel rims not 24" chrome China specials, nobody will notice or care unless you're out making a dick of yourself.
Also sounds odd to me that they're rubbing the brake lines. Perhaps have a proper look and see if the hose is routed correctly through all its retaining clips and mounts. If its a banjo fitting you may be able to rotate it slightly for clearance but this also may require rebleeding.
I've seen an SAE buttload of Hiluxes with territory rims on, it cannot be that hard.
If all else fails, try down under mini truckin forum or whatever its called.