If you can afford it then go the expert for sure man, but not that old POS on the website.
It's gotta be this one:
^^^ I'd buy that just for the crf70 plastics, crf50 plastics are just too small and klx plastics are just pure fail.
Have a look at the pitster pro x4r, I think it's the same price and you get the luxury of not having to deal with mojo for spare parts
edit: damn motovert24!! that's a 160pro not expert