Thanks for the replys, however no joy with them (I'd already tried).
Silverprint : They have only done the plastic ones for quite a few years now. It was either there or |Fotospeed that i got the originals ones from.
Wet Plate Supplies : They have shown them as out of stock for a good long time now. I'll email them and see what's the issue with them.
Looks like I migth have a go with my idea of trying glass stirrring rods with a handle glued onto them. Should be able to get them upto about 12"