The level of customisation we have in ship outfitting is pretty extensive, but bizarrely, when it comes to exploring, it could turn out to be one of those times where less is actually more.
In
Frontier: Elite II we had hull capacity...and that was it really. What you chose to fill the insides of your ship with was up to you.
Which meant I could take the Asp Explorer of the day, ditch the class 3 hyperdrive it came with, and squeeze in a class 4 instead, a drive which was realistically far too big to be practical. Fitting one meant ditching just about everything else, but the upshot was, I could jump further and faster than just about anything else, which made it an unbeatable high-paying courier ship. Added bonus was that I also could take any assassination job on the boards, because I
knew with absolute certainty that I'd be able to follow a hypersapce wake and jump into a system long, long before my target ship even arrived...All I had to worry about then was the fact I only had a 5MW pulse laser rather than a decent beam to take the target down with, because it was all I could cram into the space left from fitting that huge engine
Trip down memory lane there
Back to the present day - my point is, all the E-D ships currently have a physical limit imposed on such extreme customisation in the form of individual module slot size. Presumably this is all fine and dandy for game mechanics and balance, and does still allow for quite a large degree of customisation in builds.
But perhaps what we need is a subclass of vessel that a shipyard has designed
specifically for crazy people to do extreme builds in. One where the fittings for module sizes are more...flexible.
Imagine the outfitting screen, but with a difference : for the ship in question, you're given a certain number of
slot build points and you can juggle them about as you like.
For instance, if the default allows for a class 4 FSD, you could up that to a class 5,
but at the cost of a slot point elsewhere. Say, you'd have to drop the maximum class distributor or power plant you could carry by 1.
That way you could indeed make a ship that's basically one big engine...but have to accept that making it so means you'd have no shields, weapons or utility slots, and only about 30 seconds of life support, because you spent all your points on the pure horsepower.