youll be looking for a set of 106 rallye steels if you want white. S1 are 5.5\" wide, S2 are 6\" wide.
Failing that why not get some and spray them yourself?
Cant remember which, but it might be earlier VTSs but they came with an Rallye style spare with shims welded to the bolt holes so you could use alloy bolts instead of steelie bolts.
Try 106 Rallye register or ebay. I once picked up a set of 5xS1 steels for £12, then just tidyed them up with a can of paint, and put on new tyres.