you aint gunna notice 0.1 of a millimeter mate, but its 57.1.
Nav mate, as long as the center bore is right for 5mm ones, you will be fine. You get wheel wobble with universal spacers that dont sit central throwing your balance out.
My front ones were about £7 posted i think, i run rear 16mm ones, pretty much the same as you posted.
Remember you will need new locking wheel bolts too, get four longer ones, after working out which ones you need eg. standard legnth + 15mm, then cut the front ones down to suit.