The author of FLAK 88 tried to do this and unfortunately upon a certain size, systems become unstable. I think he said that it causes invisible barriers you might bump into and general instability of the game.
Theres also a maximum number to docking-abilities. Like stations, Jumpgates, Jumpholes and so on. I dont know if thats just hardcoded or would cause other problems, though.
Flak works with Cruise-speed of 850, too, by the way. Tradelanes have been exchanged with buoys - just as freeworlds, i can attest you a pretty well working Fighting/Waylaying-style to the game.
