Mini cooper s timing chain rattle?????

[Bavarianbanger]

Herselfs 2003 mini sounds like a diesel when ticking over but is fine when revs hit about 1800rpm, after some google searching I'm sure its the chain rattling. So its now parked in the driveway waiting to be trailered to the mechanic.

Can anyone tell me if its a big job to replace the guides and a ball park figure on how much it will cost???

Thanks
Johny.

According to my mechanic it will cost €600 to have the chain and tensioner's replaced. Seemingly buy from Peugeot as its a Peug engine and the parts are a lot cheaper