Reply to Pioneer, Technics faders

I've noticed an Ebay shop in the UK which supplies Technics 1210 faders and Pioneer DJM 600 faders.

http://stores.shop.ebay.co.uk/methleykev__W0QQ_armrsZ1

What I'd like to know is the resistance values of these faders. Do they all come as standard 10k, or is this the reason (apart from the price) that I haven't seen anyone build with them?

Once again all information will be gratefully received.