I'm lucky with mine, just made most of them up and got some custom stuff as well, all coz i know if few people at Silflex. But please dont ask me to get you any, coz i cnat sorry. I think i've changed every pipe there is now.
Most cant be made up of straights, reducers and elbows. just get measureing and expect to shell out a fortune for blue bits of tubing. lol.