On the rockers... as a rule of thumb the stamped rockers are OK up to .5" lift with a FT profile and moderate matching springs. I would surely avoid the PAW AL rockers.

A mild FT cam and stock stamped rockers would work fine and be very budget friendly.

If you go more than that, higher end rockers are really important to get a reliable result... and also not trash your nice new engine. I like and run the Comp cast steel alloy "pro magnum" rockers at .55 lift. The Hughes aluminum rocker is supposed to be good as well in a moderate application and not crazy expensive.