I looked at this site and even priced up all the parts. I don't know what it's like in the east but here the prices for pvc parts were all over the place. By the time I was finished it did not look it would be all that cheap and then where to store them.
So I went with this
http://www.iceinspace.com.au/forum/s...ad.php?t=59704
Which ever way you go don't skimp on your tarps. The cheap ones are practically see through, you need to get the expensive ones which are silver on one side and black on the other. Nothing gets through.