I guess the first thing you'd need to do is to collect evidence who of you ownes how many bonds - and provide them to Pirate as your claim.
Which is exactly what he has asked you to do, but you dont want to do this.
So what the hell would you want to sue him for? Fot not paying yor money to Goat? Obviously he does need to pay them to Goat after declared default - though he wants to pay them directly to you. I dont understand why you dont want Goat and Nefario to give your withdrawal address to Pirate so he could pay you out directly. Instead you plan to sue him...
Have you thought about doing MRI? Because I think that maybe you should
I really can't help but get the feeling you wake up each morning sticky after a wet dream about your wonderful white knight coming to save you from the evil Goat and his nefarious henchman. You do realize that there's a very good chance that Pirate has your money, has no intention of giving it back, and is laughing at you right now, right?