Ship Shapes/Canvas

Perfect idea and very important. Need more restrictions which will dictate shape of ship for players. 

Just as example, here is real project of interplanetary nuclear powered tug which developing Roscosmos:

At the fore installed nuclear reactor, it produce a lot of heat (first restriction), to spread MW of heat (even in this "tiny" tug it already 4MW) in the middle of tug installed drip refrigerator (it spread in open space drops of coolant and then catch back), as result whole tug can't be short or compact, it need appropriate length (second restriction). Tug use electrostatic propulsion system (plasma/ions/etc), but impossible to put this thrusters close to cargo (especially if cargo is habitable module), so all thrusters installed on distant distance (third restriction).

It is possibly to add something similar. Reactor can be really dangerous, it can need complicated cooling system (which can dictate shape of ship), thrusters can have dangerous zone in space near self which can destroy hull during jumps. As example from real life this is new not used plasma thruster: 

while this is how it devours self (even ceramic) with time:

In similar way in devours anything close enough to self.