Hi can any one tell me the value of an oil cooler and pipes thats in mint condition with no corrosion whatsoever.

second hand i'd say around £100....

I'll raise you. £150

They have no specific value - The fact that you cannot buy them anymore, and most 2nd hand sets are either sold or rotten, means the seller can advertise them for whatever price they like and somebody will buy them.

Just offer what you are prepared to pay and try to negotiate a deal for them.

If one has a leak on one of the runs, does that deem it U/S??

I have one that is in OK nick, just weeps, (surely that can be sorted?)

Chrissy