Almost all OEM parts I needed came from oldbritts.com
Great experience all parts shipped correctly by Ella the first time.
Fred was most knowledgeable with all questions.
They have a great tech site.
I wish I could do all those mods they are something else.
Stay away from the pattern taiwan parts. Coils are ok
but the shocks were sucky and the muffler bushing studs had to be hack sawed shorter to work.
They ripped in 2 months of riding and had to be replaced w/ Norton ones from Old Britts.
All the vendors mentioned are excellent.
My exhaust down pipes were from Commando Specialities and I am very pleased.
Ebay is a good source as cited earlier for orig.takeoffs. I purchased a new brake pedal cause I wanted orig. chrome
off ebay and paid a fraction of what a new one cost. You must ask the right questions as you get what you see and sometimes it isn't
accurately described. Most sellers try to describe to their best of abilities just not experts on commando parts.
I too have stayed away fom the Chicago vendors as I have taken the forums advise.
No need to experience disappointment first hand.
There is enough vendors out there to chose from.
Hope this helps you get started.