Do you have a Carbatec in your area or in WA, if so try them? I do know they sell pin blades but I've never had to buy them so not sure what type they are, but give them a try.
Also try Timbercon.
Marg
G'day Susan, welcome to the Village. I'm down south in Victoria on the Mornington Peninsula. One piece of advice I can give you is to use a take away cup for your coffee, the lid keeps the dust out.
Marg
I have been on the back of a couple of motor bikes and I have cut a couple but that's the extent of my knowledge.
Great work Dick, I can see why he liked it.
Marg