Welcome.
Lift has to be measured in VERY precise locations. I notice your numbers are almost exactly half those specified, which simply makes me wonder. And wonder. Then rocker arms often multiply the lift of the cam. I've replaced lots of camshafts, but never one worn to half. I'm not doubting, just scratching my head a lot.
1) You need a "balance puller". Then you need bolts to fit those 2 holes... which are threaded.
LIKE THIS. Works just like your wheel puller, but uses bolts. A very handy item to have.
2) With that much wear you'll need a new oil filter ! Don't forget new o-rings.
Hope this helps.