Out of sheer insanity, I've become interested in obtaining an autoclave to facilitate working with pre-preg carbon fiber.  Unfortunately, my searches almost exclusively turn up those used for sterilizing medical equipment.  As such, I can't even get an idea of what such a device would cost or from where I may obtain one.  Nonetheless, even if I can turn up a source, I probably won't be able to afford one.  

Fortunately, I've already admitted to being insane , so I've nothing to lose by asking the following question.  Is it even remotely feasible to build an autoclave rather than buy?  As I see it, I'll first need to construct a sizeable, pressure-rated vessel.  I have access to a great deal of large-scale metal and concrete fabrication equipment, which could come in handy.  After that, I'll need to design/integrate pressure and temperature control systems, which could be a bit trickier.  I'm sure there's more to it, though, so I come begging those more knowledgable than I for guidance.  Your suggestions (aside from those of psychotherapy) are welcome.  Thanks.

Edward Dudlik
www.becomingdigital.com