Thanks Dave, I should have responded sooner, no mine will not be available as I'm moving on from Canberra to Sydney and Brisbane next week.
However the good news is that I received a phone call from Michael Kirk -Williams at Gibson RM and he is looking for someone with a WH to do the next step of test fitting on, I guess that means a freeby for someone!
He wished me to apologise for the delay to all the "Jeepers", when they tested the airflow capacity on the one they had produced it did not come up to scratch and he has had to create a totally new mould for the WH.
Michael stated that he has been as frustrated with the development of this one as all of us have been and asked could I place this item on the forum.
If you'd like to be involved, no he won't damage your chariot, please call him, or email him, as below, he is always very prompt and detailed with his replies.
Michael Kirk-Williams - Gibson RM Ph 03 5987 3733
Email - email@example.com
All the best guys!!