On 15 May,

Having knocked down a very old cedar garden shed, I want to cut up all the
wood.

Not with an angle grinder!

I have one of the few wood cutters for an angle grinder - the
Arbortech disk. It's also just about the scariest power tool I use (I
refuse to use a Lancelot angle grinder disk) I've never seen a saw
blade for an angle grinder and wouldn't trust it at that speed anyway.

This is not a good idea.