Ship Customization and Modification questions

By sakieh, in Game Mechanics

Now, these might be in the rules but I missed them. However, as I could not find this info, I will ask:

1) Regarding adding ship weapons: I would assume that adding a ship weapon is not a single hardpoint per weapon, and that some weapons, being bigger, are going to take up more slots then others. Where is the listing of how many Hardpoint slots weapons take up?

2) Each system for a ship includes a Base Stats, and a modification stats. Now, I am assuming that the Base is when you are paying hardpoints from the ship…what determines the limits you can modify a system?

3) Is it possible to trade cargo tonnage for extra modifications, or to trade hardpoints for cargo tonnage/consumables?

(Ship modification has always been one of my favourite parts of the Star Wars setting…I am hoping for more rules on this, especially as the Edge of Empire's area of focus is very much towards where this would be a key thing, especially with regards to the Mechanic and Smuggler careers)