Cm870 needs another valve cam please help

[Sledpuller]

I’ve got a cm870 565hp that has flaked another valve cam. This one only lasted 80,000miles
Looks like it’s the same lobe as last time. I replaced the affected rocker last time also.
I’ve been reading about an updated cam with wider lobes and updated rockers with wider followers.
I’m guessing my best bet is replace everything this time? What the best place for me to purchase? Cummins directly?
Any other opinions or options?
Thanks for any help.