Ickis,
If you go through the thread, there are few part where I explain the differences in the forks, you can use the 1995 repop forks, the part that holds the spring down is what changes the most. CMC wheels were just an aftermarket heavy duty wheel in the 80's. They came stock on a few eighties bikes. GT and Schwinn cruisers and mountain bikes from the mid to late 80's have them.
The tanks BB sells are not NOS, they are repop seconds from a batch made long ago. He will eventually run out. Original tanks are a lot pricier unless you get them on a complete bike. The are nice enough to run though. I have a plastic tank, although I did end getting a fiberglass tank a while back. I may switch mine out sometime soon. The metal tanks don't sit quite right as they have the inner flange where it sits on the frame, and on the movie bike the tank was scooted back a bit to allow the red cables to come out of the front area.
Once again, good luck with the build. A lot basic parts can be bought through Amazon, and read the whole thread.