Yes, I bought the kit from Motobins including new water pump seal, new oil seal, O-rings, smaller spacer bush and water impeller. The shaft is in very good condition - no pitting.
I fitted the water pump seal carefully and pulled it into place using first washers and then the new smaller spacer. The pump felt very tight when rebuilt. Almost too tight to turn by hand. I tapped the impeller bolt lightly which seemed to ease the mechanism but the pump still felt a bit tight. I fitted the pump back onto the bike using RTV silicone sealant but it drips through the drain hole.