Padawan's and Jedi's in training are all that are left of the Jedi Order, so I don't know the general plot. I can authorize a freighter or transport for you to inherit, but not even the Republic Remnants or Sith/Imperial Remnants could take anything. They all made a hasty retreat to somewhere safe. All the major shipyards were destroyed, including any near the planets that were destroyed or set to ruin. You could say shipyard's are an endangered species until rebuilt. One of the two generic shipyard's have a shipyard that can build Acclamator sized ships, and the major Shipyard owned by an Organization has one shipyard that can build Star Destroyer sized ships. The problem, however, is that only the Organization has any designs or schematics of ships 500+ meters, and they are near generic, and only two. Not to mention they don't go over 700 meters. Enough for individuals to make an adequate fleet.

Plus with most credits destroyed, the price of things have gone down, but credits are harder to come by, so bartering is back online, so to speak.