Hi, how many miles has it done? Generally the timing chain replacement wouldn't show in history as it's not supposed to be a serviceable item. However, you may find a receipt for it somewhere if it's been done.
I'm just changing mine now as the chain had snapped, bolt through the adjuster had also sheered and the tensioner was in bits. The chain even damaged the casing which I have now had welded.
It's an easy job to do as long as you have the locking tool for the cams. In my case I NEEDED to replace the chain, tensioner and adjuster as the small locating pin on the adjuster was also sheered off. A few pence worth of pin, but this is not available separately according to TPS!
Yours sounds a bit terminal though mate, not sure I'd drive it anywhere or start it before investigating it further.
Good luck