Having had the car a week now and driven about 250 miles in it (between rain showers mainly) the pedals do seem to be in an ok position for me. So all my concerns and ideas to resolve them turn out to be mental exercising. However the tips by others on this thread hopefully will assist someone at some point.
Interestingly my pedal box has the M3W pedals still and is not modified. I raised this with Berrybrook who said they inspected the car and said the pedals were in fine condition so the upgrade not needed.