I have a similar post about rez trucks, but some ppls and devs sayed that this would imbalance the whole game because you don't have to fight for the metal any more if you can get it from a save distance.
If you want to get the wrecks, than I suggest transporters ( because they are vulnerable so that you have to protect them with shields ).
But it would be nice if you can get the wreckages of Krows, Banthas and Demitrants.
If someone can transport this wreckages it would be a real fight even for the air there since air cons are really weak.