The problem with iron heads on a stroker is compression - too much of it.
If you want someone else to build it, I'm a big fan of CVMS. Aluminum heads can be painted (I did mine) and if you're highly motivated you can even grind off the logos.
I'm running an 800 cfm Qjet on my 461, on a single plane intake. The car so far has run a best of 11.86 at the track, and also made the whole Hot Rod Power Tour this summer.
Iron heads can be made to work, but you'll have to make compromises, spend almost as much as you would for aluminum, and won't make as much power.
I'd be willing to talk in more detail if you like.