Timing chain replacement?

Need a diagram for a timing chain replacement

Engine Performance problem
2000 Lincoln LS V8 Automatic

I have a 2000 Lincoln Ls it makes a tapping noise when I start it up. It is drivable but I haven't driven it in about a month.I took it to a garage when it first started making the noise they told me the timing chain was going bad. I have had a few other mechanics tell me if the timing chain was going bad the car would not start. The first mechanic told me that I would be better off replacing the engine, because if I replace the chain I will have to replace the engine later.

Hello I currently have a couple mechanics working on my 2000 lincoln ls 3.9L v8. They are installing a new timing chain because the last one broke. They can't seem to get ahold of the specialty tool you need to align the cams for this vehicle.I believe it's called a camshaft alignment tool. It's just a crankshaft that locks onto the cams and holds them into place while you get the timing chain into the correct position. Could you please aid me in finding this specialty tool? Thanks

So where do I find these tools that is the question i'm asking.

Thank you so much I really appreciate the timeliness of your response.

My secondary timing chain broke on the passenger side. And I need to replace it. The diagram you have is for the v6 model. My vehicle has 4 chains which is a v8. Two on each side of the car. Can you post a diagram for the timing setting on the 2000 Lincoln LS 3.9 v8.