I just recently bought my son an outlaw kart. It is a used 2019 ultramax rival. I have been looking into buying replacement body parts but when I look on the Ultramax site they only have flat kart and a couple champ kart bodies. I have noticed a few sites like Toigo racing that sell everything I am looking for but I am unsure if they will fit. Are most outlaw kart bodies universal and if not does anyone know where I can find bodies compatible with ultramax rival?