Hey Gordo ..... you sure did pick a tough scratchbuild project here. I haven't built one yet mainly because I haven't rounded up enough clear references to do this build. It is a rather complex mess of pipes and tubes. I do have a few pics that I have rounded up and you're certainly welcome to any of them if they will help you out.
Send me an e-mail if interested.
Happy Modelling and God Bless
Robert