In my opinion, there is no way this cart was original at one time and then reconditioned. The wood is definately not original. The wood throughout the whole cart is tongue and groove used for flooring. Weber clearly didn't use this, so there is no question that none of the wood is original. Plus, the construction is clearly different. We know the kettle isn't original. So that leaves the remaining pieces such as wheels and hinges and door handles? We know the door handle isn't original for sure. The hinges and wheels are all that's left. Jeff says it's possible they could be original, but if I was a betting man in Vegas, I'd say no. Given everything else isn't original, I doubt those last two pieces would be.
If it was a recondition job, I would think the guy would take apart the whole thing board by board, retrace each piece with an exact copy piece of wood and reassemble it again? That's what I would do if I were reconditioning it.