I have a S2 33 with these wheels and have no problem with them with or without a spacer!! I run a 5mm slip on all round, as i wanted that look, could even run another 5mm on the front, but would need to roll the lip, which i will do anyways!! I run 235/45/18 all round as i wanted a bit of stretch on the 9.5!! Pic below for anyone that wants to see them in shadow chrome on a S2 33!!
Good luck with the sale, I'm sure they will seel, very popular wheel, almost too much!!