Okay I think you're going to struggle to be fair. The bolts won't be too much of an issue as you can get these per the size you require. The only problem bolt will be the strut bar. This needs to be a fine pitch 1.25 - which unless you have them available to you, you'll need them to be made, as I had a complete nightmare trying to get hold of them in the UK and had to source them from Germany.
The strut spacers again, shouldn't be an issue as this can be made custom from some aluminum. Next you have the Nylon spacers in the centre of the plenum. These are custom made for me, of which aren't cheap, especially with the small volumes that I do.
Me personally for the hassle of trying to get this to work, I'd throw it away if it didn't come with the necessary parts. Your main serious problem is the Nylon spacers.