Newbie needing help! Cost for Timing Chain Replacement on 2L

["Matthew Byrd" <matt.byrd@pinnaclepolymers.com>]

I am currently looking at a 2000 Roadster and the owner is not sure if
the Timing Chain has ever been replaced.  If I buy this car, should I
replace the Timing Chain ASAP, try to inspect the chain or wait for the
infamous "Buzzing".

Also, how much is it for the parts to replace the Timing Chain?

Last, where is a good place to buy a new soft top in the south-east
area.

Thanks,

Matt Byrd