SUM-K1102. Is the kit with lifters.Yup. Sure looks like you need an engine. Several lobes nearly gone. That cam bearing looks... not so good.
If you're dead set on replacing the cam and keeping this engine... I would recommend the Summit 1102 cam. I just put it in the 305 I overhauled for my El Camino. It's a good, strong cam, and much less expensive than that comp cams one you linked. Get a set of their lifters, part number SUM-HT817, you'll need 16, and re-use your timing set, since you recently replaced it. That's about half the cost of the comp cam set you posted.
Slap it in and sell it to some other sucker.
It's time to move on
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