Theres a form to let a 64x64 player skin have armor?

So I see a forum of how to copy a player skin on a mob, but because player skins are 64x64, and mcreator player skins that are supported are 64x32(or somethin like that) I need a custom model, that cannot have visualy armors or items in hand, theres some form that a custom model (that just will be a player, but whit a 64x64 texture) has items and weapons visualy?