Contact pins for a da* lens

Does anyone know where i could get a full set of replacement contact pins for a DA* 16-50mm f2.8? I bought a faulty lens and tried to repair it, however i have lost a spring from the pins and damaged some others, so wondered if anyone knew any stockists of spares for pentax lens?

I think Asahi Photo will be able to supply these

Thanks, i will give them a try.