Lane Hackers can indeed fly destroyers.
If you want to fly a Scylla, I suggest contacting the LR- or PLR: about gaining permission to do so (since you'll be using a Lane Hacker ID).
BTW Not sure if its still around, but there was mention in Hacker lore that they buy destroyers from Outcasts, but Outcasts sell less powerful version to them that has weaker generator.