I have the 20 th aniversary Optimus prime .I believe it's the same or similar to mp01 or mp04. Correct me if I'm wrong. eBay in the states shows a 20th aniversary trailer for him in a black and silver box for over $150. I also see mp01 trailers for around $100 in plain packaging. Wil the cheaper version fit the aniversary prime and does any one recommend or know the quality of either trailers. Thanking you in advance.