Not with the fussy bookcases, but you could do something simple underneath and even use some of the leftover floorboards for the top + add cushion.
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So...not quite this rustic, but could do just really simple leg (maybe event set back in the middle) and a concealed bracket underneath that goes around on all 3 sides.
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Stacked stone w/ rustic wood. Similar set up to yours, sort-of;)
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This one is kind of what I had in mind, but don't know that it can be done without busting into walls. But could do something that looks like this and add legs and "fake" it.
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Could even do something like this that would look built-in, but isn't - allowing for heating vent in the middle.
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this is simple and gives the appearance of a built-in, but isn't. view leg ideas at hairpinlegs.com
pretty stacked stone w/ warm tones and gray
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