Well, you can no longer mod them now, so the only way is to buy one of the older ones that was modded. So the only way is to buy one of those, which can cost alot. The last one I remember seeing was some kind of freighter for like 20+ mil.
Interested in coming to my funeral? Talk to Mike Que-kara about getting on the guest list.
Where ever someone is selling them. some people won't part with them, but if you are lucky (and have enough money to buy them) Centrepoint Market or the Commerce fourm are probably where you would find them.