The only way i'd buy those heads is if they were for a restoration project. For all you know they have had multiple valve jobs, cracks, etc. Not to mention that new heads flow better
I have camel hump heads on my 327, but everything on the car is original.

 

I have to agree with Greed4Speed here. Save up a little more and get something new. If you compromise, you'll regret it later and then buy what you really wanted in the first place. Compromise costs more money in the end.