update:

In testing I found out that apparently dungeon can only exist in the underground biome and below, which means I can't have a dungeon on the ship. Instead of having the dungeon on the ship, there is a teleporter room that brings you to the dungeon and the old man will spawn outside the teleporter room. If you want, you can use the teleporter to fight the old man on the ship or teleport him to the dungeon and fight him there.
Me and some close friends are beta testing the map right now. Freebies you can find around the ship (which are necessary seeing as how they cannot be obtained any other way) include:
-25 mana crystals (shooting stars are unobtainable)
-3 broken space guns
-3 mining helmets (since torches are hard to come by)
Right now we're making good progress. We decided to start by searching the jungle planet for trees:

And we found like 4. Oddly enough, we managed to make platinum pick axes before we could make our first bed. Platinum is more plentiful than wood in this world.

Right now we're setting up a little base of operations outside of the jungle portal for convenience. Shadow orbs are nonexistant, so if we want an arms dealer we're going to have to find a Boomstick in a jungle chest. Wish us luck.