Similiar as vanilla - either buy it for raw ore at Resource Depot, or get it by clearing any pirate sector ( there's plenty of pirate sectors to clear, even at faction sectors with gates ).

You don't have to fight yourself, faction defenders can manage on their own, or with little help from you.

You don't strictly need Titanium as first knowledge, it can be Naonite or anything that drops around. But you'll need it to get more slots later.

EDIT:

Also, you don't need building knowledge at all, you can buy ships for credits. Just can't modify blocks other than Iron, which is not an issue if you use workshop ships and upgrades.

managed to buy it did a tranfer vessel mission and got like 150k lol