Re: Timming chain
clicking noise is lifters,I wouldn't worry unless it gets worse.
Brake shudder is warped discs,machining will fix for a little while but it will come back,proberly caused by not bedding in the new rotors.
Timing chain,leave it alone unless it is rattleing,no reason to change a timing chain till it starts stuffing up,you will have plenty of warning.
AU series1 Futura Duel Fuel,ceramic coated Pacemaker Headers,Hi-Flow cat.2.5in. exhaust,T-series snorkel,K&N panel filter,D.B.A.Slotted Rotors