You know, its not important for things to be level 100. In fact, many people won't trade for pokemon that are level 100. When you go into battles, things are automatically adjusted to be level 100 stats. Making Raikou level 100 really makes no difference.
Do you have anything to trade in return? If you do PM me a list (including all natures, IVs and EVs). If not, let me know so me can work something out (I never like to just say no when people need something).