Add the ability to choose whether or not you want your installed segment to be large or not, I know it might sound weird but I’d find having the same amount of slots spread across more small segments to be a lot more convenient. That way you could have a longer drillship without affecting the balance aspect of the game that much, if at all.
There’s an actual physical length limit before the drillship will start clipping into things at the rear. Having the longer segements cut into the 3 shorter segments each needed would make the whole thing physically longer and could potentially make it too long.