They look alright, as far as trainers go, but I'm often scornful of collector edition trainers as they tend to get scalped. Reebok occasionally reissue the Bugstompers from Aliens, and they're always sold out within seconds, only to reappear on eBay for several times the original retail prce.
hope it comes with a limited edition knife
Very unlikely.
Aside from the various import difficulties, buyers of such things are often kids (or parents of), meaning age restrictions. Also, given how frequently owners (again often kids) have been killed just for their trainers, I don't think including a blade of any kind would present a good image.