As long as you're sure you'd still like to be wearing that design (possibly faded) when you're a grandmother, then I say you should do what moves you. (I've often considered a tattoo, but I'm afraid of that "permanent" thing. Instead, I've drawn on myself with marker from time to time. :P) It's certainly a beautiful design. Perhaps center it over your abdomen, with your belly button at the center of the design? How big would it be?

One thought - might you consider getting it henna'd on you, as a trial? Henna will last a week or so, I believe, so you'd get to try out the feeling of having the design ON you, all the time, but it wouldn't be permanent in case you change your mind.

By the way, completely off topic, but I just discovered a recipe I think you would like. It's not dirt-cheap, but not particularly pricey, either. Alas, I think only you will like it, but if you want a fairly quick, warming, low-fat (though not low-carb) soup: Ginger Carrot Soup. I just made it for the first time and YUM. Add a hard boiled egg or a little shredded cheese for protein, and you've got a meal.