We sell these heads regularly and so I monitor current pricing. The early-style 429/460 cylinder heads (C8VE, C9VE, & D0VE) which are all the same/interchangable, have been fetching about $300 on Ebay lately for bare castings. These heads were used in production for only 4 years, and that was almost 40 years ago. People want them because they are getting hard to find for some people, and also they were well ahead of their time in regards to the amount of power they can support
If you can get remanufactured assembled D0VE heads for $400 I say jump on it. I laugh at people who build 600hp-or-less (carbs & gas) Ford engines and use aluminum heads to do it. From a power creating perspective, the need for the aftermarket head is completely unnecessary. And with the addition of power adders, 4-figure horsepower is easily attainable with the factory iron.
LO