Just my 2 cents fwiw. My dad has a foolproof method of hauling any building. He has moved buildings and granaries ( metal or wooden buildings for storing grain) just about anywhere. It never mattered how the building was constructed. Here is his method:
Using a variety of methods he jacks up one end of the building. Most often with a HiLift, or with a combination of bottle jacks and timbers.
He then slides two long 10 x 10 timber under the building so that they stick out each end. At one end they are together at a point and at the other end they are wide apart.
Using jacks again, he lifts the end where the timbers are spread wide and slips an old trailer axle under them. He uses chains and binders to attach the axle to the timbers.
All that is left is to chain the other end to the back of the 3pt on the tractor, lift it up and away you go.
This method can be used to move a building of any construction. My dad has moved very flimsy buldings large distances without damaging the building.
In reference to your case, if you were building so that it could be moved easily, I would only worry about building in strong base timbers that extended out from the bulding on each end. These would not need to be the sill plates, in fact they do not need to bear any permanent load. The timbers I would build in the timbers closer to the center line of the building. As long as you build in some lifting points, you will be ok.
However, a timber frame building is much more aesthetically pleasing to look at and probably to build as well, but I do not think it would be necessary to consider the moving stresses in the construction.