Hello.
I unfortunately do not have the Treecko you want. But I do have a 6IV event Celebi. It's level 72 and knows the moves: Psychic, Shadow Ball, Shock Wave, and Perish Song. Natural Cure ability. Hasty Nature.
I also have some shiny pokemon in my shop and Cobalion, Terrakion, and Virizion. Please feel free to have a look and see.