New to restoring Norton's. My dad had a 75 commando 850 when I was growing up. He was recently diagnosed with Parkinson's. In all the years and of all the bikes he had, the Norton was the one he still talks about today. I decided I wanted to get his old bike back and restore by spring so the old man can at least take a ride on it one more time before the Parkinson's takes over. I have purchased his original bike back from a relative in Kentucky. The restoration is underway, but I have several questions. Has anyone heard of Norton selling 74 models as 75s? Also, what do the original silencers look like on a 74 and a 75? Any pointers for a newbie? Re-chroming places? Is the chrome products at Andover Norton of good quality? Any US options that are more affordable but of good quality?