I don't think it's possible in the way you mean it: Decompose,
move, rebuild Decomposition is possible as long as we can
consider the matter classical. If any quantum state is relevant,
it will be automatically destroyed in the process of measuring
the state of each atom in order to be able to rebuild later.
This will lead to a large increase in entropy (which is relevant
in the last step). The movement of a stream of atoms is
possible, but not simple at all, especially if you need to focus
it in a spot. The energy required, though is probably very
similar to the energy required to transport the matter
classically. Rebuilding is possible (given enough technology,
that is), but it would be enormously expensive in terms of
energy because of the need of reversing the increase of entropy
in the first step, locally. All in all, it's probably possible,
but much more expensive in terms of energy than simply moving
the body, so it's not clear to me how useful it would be. Also,
were the matter being transported a liv