DIY Plywood Flooring

We've been hearing a lot of good things about turning plywood into hardwood flooring and thought we'd give it a go. We'll be buying either oak or birch hardwood plywood and having it ripped into 3 or 4 inch boards, but we're looking for advice, tips, or anything anyone has to offer.
We've never laid any kind of flooring, most definitely not unfinished hardwood boards. No idea how to stain or finish them.... Basically, we've got no idea what we're doing, but we're pretty handy most days and want to give it a go. I've read and re-read this tutorial a thousand times:
Thanks for any and all help!
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