Hi Deejay, CyberJack, BB, Firstly, thanks again for all your help so far...it is truly appreciated. I tapped the cotter and freed it up and had to use a rubber mallet to get the clutch housing off. It took a bit of effort to remove.smashpc
I have cleaned all the parts up as per attached photos.

Engine Shaft (from a few angles) has some wear marks but doesn't look too bad from my nube standpoint.
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Clutch main housing. Has a previous ding mark on the outside (NOT ME) but looks OK inside. The paint on the cutter clutch melted off as soon as I got some petrol on it so I removed it all and I will repaint it later. There are a few bur marks on the inside edge (hope you can make it out in the photos)
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The inner cone has cleaned up pretty well.
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The outer cone looks Ok...but once again, up to the experts
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Spring and clutch key look ok although the key has a small ridge worn into the end.
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