Good for you!

I bought a Jamis Aurora last year for a Katy Trail tour that DH and I are doing this summer. I like it, but it sure feels heavy compared to my steel road bike. If it were me, I would rather be on a light road bike for a fully supported x-country tour. I suppose you can try to keep the weight down in how you build it up, but it would likely still be heavier than your standard roadie.