Carefull Rolf! Sounds like you are close to jumping into it. The process materials you need (bagging film, breather cloth, release film, sealant tape) can be bought from AirTech International or SP Systems. AirTech has a store at their website for people buying small quantities.
The aerospace industry has pretty much standardized on 350 deg. cure material. So, if you make everything to operate at this temperature you can allow yourself access to cheap and plntiful surplus aerospace Prepreg material. I made the 42 foot mast for my tri out of material originally purchased for a contract to make helicopter rotor blades. It was two years out of date and cost $5.00 per pound (retail $30). It worked great - as long as it is properly stored at 0 degrees, it will last for manny years.
Material normally comes with a datasheet showing recommended cure cycle. I do not use pressure over 40 PSIG since this provided excellant quality laminate. Too high of a pressure can actually cause the fibers to break where they are woven over each other in cloth material. If I were to do it over, I would try to find 10 inch or 12 inch pipe instead of the 8 inch pipe I used. There are a lot more things you can make besides masts and a littile bigger size would give you much more flexibility.

Kevin