If he doesn't have a good brush you could go for one of the thater brushes from them. Not sure what creams they stock nowadays but castle forbes is rather nice and they used to have that.
He has a strop already, there are some very nice strops at SRD too, but I think it's better to leave second and third strop buying to him.
P.S. I think I'm down to about 250-300 razors and I'm not really an outlier here.