Hi, @F_Pantos grub posted the lock wafers to me on Thursday but I left for Spain on Saturday they hadn't arrived up to me leaving, I'm back on the 28/2 so will get straight on it, he did say there weren't many left, I'll message you when I'm back.
Yes..I wouldn't expect there to be any left as the number of wafers has been reduced every time they have been passed on. New supply needed for the lock water chain