You can upgrade your ships faster.

/admin
/spawntreasure bk3k_shipUpgrades
/admin

Note they'll spawn at where your mouse is pointing
If you want while in admin mod though

/spawntreasure bk3k_constructionMaterials
for lots of vanilla tiles.

/spawntreasure bk3k_shipyardContent
for some stuff I made

/spawntreasure bk3k_lightedPlatforms
for lots of lighted platforms

That could give you a pretty good start on building up the shipyard how you like.