Any advice on my 440 recipe?

If you just intend for this to be a low dollar street engine I wouldn't even bother buying pistons. Just cut the deck height on the block down. I've done this dozens of time and it will raise the compression faster than trying to find a new piston that you probably don't really need in the first place. I wrote a pretty in depth thread or reply on here on the forum about how to do it along with every detail you need to know doing it this way.