Cheers but that was just a sketch-up to see what it would look like, and to test my limited 3D program knowledge.
Although not impssible to make one up but Id have reservation about the runners myself. Dundee was saying if you made such a thing in Solidworks you could actually simulate flow test them...but thats way beyound my reach as yet cos I have my hands full enough trying to learn other programs.
If you were going go this way, i wonder how much it would be to do it out of cast alloy vs fabricated?

In the meantime, Ive decided to try and swap flanges from the round port on a Lynx manifold to one of chris' flanges, just gotta find a good welder who thinks its not such a stupid idea! :)