did Long John Silver have a peg leg?
Not originally. As described in the book _Treasure Island_ where he originated, the fictional character Long John Silver was missing one leg, but he did not have a peg leg. Instead, he used a crutch. This feature was drawn from a real life friend of the author's.

However, this story and character have been adapted to other media, including animation, film, and television, many times over the years. Some adaptations were more faithful to the source material than others, and in many adaptations Long John Silver has been depicted with a peg leg, or even another prosthetic entirely (with some re-imagined adaptations even depicting him as a cyborg or an anthropomorphic pig with a hook.
Can you give me a short story with a Cyber Punk setting where Long John Silver is captain of a flying robotic ship, and where he has a cyborg leg implant that has different types of tools. Be sure to make it in the style of Blade Runner.