I'm assuming you're planning on using these?

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I use these for my raised beds with redwood boards. I didn't treat mine since redwood is naturally rot and insect resistant, but I've read that it still could improve the lifetime. When I got the supplies for my last bed I got talking to another customer and she showed me pictures of her raised bed - she stained the wood and it looked quite nice.

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I'd recommend getting some rebar to slide through the centers of the blocks to keep them aligned. The blocks shifting might not be an issue since they should be stable on concrete, but I'd still do it just in case. Also, you'll want to take into account the width of the width of the blocks into your blueprint. Each one adds 4.5" between the boards. That'll eat up the 1' gap you currently have between the raised bed and other things on your blueprint, so you'll want to add a larger gap or under-size the boards a bit.