My dad dropped off a whole prime rib last night. He has had it in his freezer for quite a while (Booooooo!) I would like to cook this on the egg. I have never done this before. I would like to get everyone's opinions on how to cook it, whether I should defrost the meat and try to dry age it etc. I do not have any experience with dry aging, so if you suggest that I do so please let me know what I will need to do to make this happen. I would appreciate you input.