ProComp/Speedmaster aluminum heads

Well basically drinking coffee waiting for the 8 hour to strike. I mean come on $820 fully loaded aluminum heads sent to my door? I've been wanting aluminum heads since I've owned the car. I should easily be able to recoup half that with my old heads?? 596 heads with 202 valves K line valve guides and Crower Springs. Right now I can even sell them fly before you buy...