A more complete description than from my first two posts:

"show ship" renders the player ship model even from first person view. It has a lot of limitations that rendering a special in-cockpit model wouldn't, but it also means that you can look around and you'll see parts of the player ship.
The build also includes the 2D code as a mission flag. It's not in FRED, so you'll have to add it manually. What that means is opening up notepad and adding 16384 to the ship flags; subtract to disable it. It's still buggy but it should be playable, I figure I'll fix the bugs on demand.
I was actually surprised how well the Herc model turned out. I was actually thinking you might've designed it with just this in mind...