Am in the process of body work on my "rust free" 72 280SEL 4.5 which means I am cutting out the rust and welding in new sheetmetal. Does anyone have an easy way to replace the window channel in these cars (and a good source for it other than the $50/meter). I currently have the doors off for some reskinning and body work so am going to do channel, brushes and seals while I am at it, but reassembly seems like it has a definite order to it. I'd rather not learn the order through trial and error.