Help finding replacement timing chain.

So everyone here is where I’m at. I took off the old timing set and I’m putting on the new Cloyes timing set. I noticed some differences between my new set and the old one. I took off the old set when I was lined up dot to dot on compression stroke of #6. Then I’ll reinstall my new timing set and chain, move the crank one revolution then install the distributor at TDC #1. It was easier to install timing set dot to dot. But as you can see in the photos I’m unsure of some things. The new cam gear has three holes in it older cam gear did not? Lower crank gear is adjustable. If I just install that at zero degrees I should be good? Do I need to install the enclosed camshaft thrust bearing?. If so does the rubber side face face in or towards the gear? How do I get to it? I don’t see the camshaft thrust bearing? I also don’t remember having a timing cover cam button? What do I do?
Carl

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