There is a lot of information on here in the tech archives. Just look in the big block section and you'll find a ton of stroker articles.

You can also pick up a copy of my big block book by clicking on the link off the Moparts main page. That book should answer a bunch of your questions.

I also have a 505 inch stroker motor that is for sale at the moment. It makes 650 hp and is ready to go right off the dyno. The cost on it is well within your price range. If you're interested in that just drop me a PM.