One thing before people get confused, here is some background about the Wave kit.
As far as i can make it out.
Studio Nue designed BOTH the Anime and the Wave kit version of the Suit.
Which of the two designs was done first I am not sure, but I would assume that the Wave kit is the older design.
The Anime was produced by Nippon Sunrise which in turn is owned by Bandai.
Bandai issued the Anime version as a Soft Vinyl kit, which can still be found at times.
The current desigg(Wave), AFAIK, was released in a variety of action toy formats, the most recent one was produced by Kaiyodo in 1/20 scale. They also offered an unassembled version of the toy.
Kaiyodo a few years ago somwhat pulled out of the industry and is concentrating more on their actual core business (Museum displays with animals, sculpting, etc).
Wave seems to have aquired the licence from Studio Nue and has released a 1/12 scale Plastic Model of it.
HTH.