To be fair, SF is full of borrowed influences. David Gerrold once wrote an apology to Robert Heinlein , worried he's stolen the idea for Tribbles from Heinlein's flatcats. Heinlien replied saying they probably both owed Buttler's "Pigs is Pigs" ss a debt.
For a more obvious borrowing/research- try this Northwest Smith character from C.L. Moore
By profession, Smith is an outlaw who lives by a variety of criminal means, including smuggling. By nature, he is an anti-hero, ruthless, self-serving, and cynical. Despite this, he has a core of goodness and often does the right thing in spite of himself. Smith is described as a dark haired man with "space bronzed" skin and pale eyes, who wears brown spacer's leathers and carries a raygun at his side like an old west gunfighter. His ship, the Maid, is small and unspectacular but surprisingly fast and agile.
Cough* HAN SOLO*Cough