hmmmm sounds like a job for my local speedway engine builder Bryan Moyle, he can do the job for an extra $300 more than I can do it but at least it will be done right, he will also machine the crank and bearing journals if they need it which is reassuring for me, when you live in WA an A series engine can be a hard sourced part.
So if this one gets arsed up I am packing up and moving to the eastern states! I can't afford the courier costs anymore!