thank you for all the warm words again - currently I discover it being real hard to find a company who is willing to make an affordable offer to make the prototype flanges. They simply do not understand that I can and/or will only order quantities after the prototype has been tested and slightly modified for perfect fit and function and that it doesn't make any sense to pay thousands for the first try which may end in the basket for either not being 100% accurate out of the drawing or doesn't bring performance gains in the real world.
But I have dozens of requests still unanswered so I'm hoping to have a good offer soon. I even think about buying my own 5-axis CNC machine
will keep you posted !
Chris
PS: as my car currently has no intake manifold and I'm not willing to install the stock plenum again I definitely WILL find a way to at least built the prototype for myself