There are copies on Amazon
This movie is long out of print and rare. You won't find it at any big chain store, but Amazon has copies for sale. Here's a link:
http://www.amazon.com/gp/product/B000222GLC/104-8387715-0968719?ie=UTF8&tag=edgevideo-20&linkCode=xm2&camp=1789&creativeASIN=B000222GLC