i appoligize rapidrobert. my mistake. i goofed up,i thought i read the OP,the words "just a reliable driver", "budjet" "not in the wallet",etc. i'm sorry,by all means,to the original poster, since the 440source aluminum heads are so close to the aeros ($499 pair compared to $1000 pair,but hey,what do i know about "so close"lol) for just a "basic,reliable rebuild" yes,you really need those aluminum heads,etc.
seriously though, i agree with johnrr,if you can re-use your heads,and get by with just a valve job,then that would be the cheapest route. but if they need alot more work,the aeros would come in under the price of re-doing the originals.