Putting on a new top on '95 Cabrio easy/hard?

Hey I'm looking at maybe putting a new top on my '95 Cabrio Wolfberg, I was just wondering how hard, or easy it might be.  Also if there is any literatre out there that is help full, let me know
 
Thanks

   If you have never done this, i'm telling you it's not easy.
  The new top will seem like it's made too small. The idea
  is it fits very tight. you have to warm it up, like lay it in
  the sun for a few hours before installing it, and then it's
  hot to hold. Or do the same thing in a heated garage.
  The heat will let it stretch with out tearing, but don't get
   the idea of a heat gun, use the sun or lay it out in a
   very warm garage.