Does anyone know where these hemispherical scaff clip protectors can be bought in or near the Dales; but maybe by mail order and preferably in small quantitites (say 40 off)?
Sure - and when it's available I'll give you the information about where these items can be sourced locally and look forward to learning of you having sorted them all!
I think you would be best calling in on a scaffold yard. They are often open to cash purchases on small items like them. Lancaster, Morecombe, Kendal all have yards. Google one up.