I have a wooden plane that makes the same sort of tongue and groove, and I agree it is a joy to use.
I do not want to picky, but I noticed that the end grain of your boards is always (at least on ones shown) facing the same direction, which is not advisable as you will not compensate warping when they get dryer.
Obviously I may be jumping to a wrong conclusion as those boards are not yet glued but I thought I should warn you. If you had it already in mind please disregard.
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I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...