Thanks Andy.
It's the Barracuda Resin wheels I'm looking for Andy. CMK do some for the Airfix Mk1, which are in stock in the UK but they look very different, and appear to have an integral axle.
With the delays due to the Covid thing, re-stocks to the UK may take a while, so if you could get a set for me, that would be great. I believe Ultracast may have some in Canada. Let me know the cost including shipping, and I'll cover it.