You can check the geometry with what you have - that wont change with lifters and pushrods. If the scrub pattern is good, you're good. Swap the parts and measure for the pushrods and order them up.
The scrub pattern most likely won't be correct because none of them are. I'd bet the OP would have to move the shafts up at minimum of .125 and then back away from the valve and it does affect pushrod length.
Buy pushrods last.
FWIW I had to raise my shafts almost .250 and back so far I had to oval the holes in the shaft.
