There is a hole slew of combinations that can be used for the springs/ retainers and loc's. Heck the loc's can come in different heights to help with installed heights.
Pushrods, best to measure after assembly and then order the correct length.
I would suggest pulling the rocker studs and machine for screw in studs and go to roller rockers. This also changes the pushrod length.
One thing to be cautious with on valve springs. Many times the cam company make a recommendation. They do not know ALL about the motor it is being used in. I have found the springs tend to "swim" around the valve guide and this is very bad for valve control. For your setup, the springs I offer fit the head right and will handle your lift and duration fine. They do not swim on the valve guide either.
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