try ISDS website international sheepdop society or local agricultural nerchants markets help if decent breed lines,my pup has aled owen lines and wants to work and not 6 months yet.
Thank peeps will give these websites a try.
To be honest I don't have a clue about collie bloodlines and well don't think these will go for thousands BUT the mum, dad, grandparents aunties uncles etc all work sheep and cattle and most have sold for hundreds of pounds. A litter mate to the mum of these puppies was sold at 4 months for a lot of money as he was working sheep already. Thanks for advice tho.