Legendary Githyanki armor?

[The Vaultdweller 13]

I like to keep the theme of the characters, and with Lae'zel I always want to put Githyanki armor on him, but the only magical Githyanki armor I've found in my two campaigns is a blue one that is dropped by a Githyanki attacker. Is there a way to get better armor than that?

There are gloves and boots, and by solving them you finally get the silver sword. Does anyone know if you can also get some armor to have the full Githyanki for Lae'el?