Isn't it a bit luxurious to tour with a bike of that range ?
Apart from that consideration you may find your bike a bit short in the wheel base as you ride with a load. It generally requires a more stable (long) geometry to counterbalance the added weight on the rear. If your frame is made of light tubes you should be aware of not loading too much stuff, it could lead to cracks or bent parts, a shame really on that gem.
A longer top tube is also a usual feature on touring bikes as you don't really need a 120mm long stem and the ideal handlebar fitting is at saddle height (BASH : Bar at Saddle Height) for a more relax position.
But, that's just what I've learned in my experience of touring (ultimately 9 days between Dorset and Hampshire via Portsmouth, Stonehenge, Dorchester, Swanage and the New Forrest).
Cheers