Looking for '80 450SL parts list and retailer info

[supercanuck]

Good afternoon!

Does anyone have, or know where I can find, a parts list for a 1980 450sl? I'm looking for some of the more obscure parts that I don't specifically know the names of, so I'm trying to find some way to identify them and then find them to buy. I have the MBZ service manual, but that doesn't seem to help that much.

Also, with that in mind, where is a good place to get replacement parts, panels, etc online? Again, some of the things I'm looking for are not the most common replacements parts.

Thanks!