e46 convertible fabric 'C' pillar repair

This is my first post, but I've owned / bought / sold several BMW's since the 1990's. Stumbled on an ad for an '01 330ci convertible with 64k by the original owner. I don't think they had any idea what they were selling. It's now my wife's car, and I frequently walk into the driveway at night to confirm I'm not dreaming. The photos of the car look like a factory photo shoot for a new car with 7 miles on the clock. Not a scratch, new tires, original paint, zero defects, except the fabric at the back of the convertible, inside the car (ie. plastic C pillars). I've ordered the plastic pillars and can only find a single youtube video showing the procedure to string the new parts to the mechanism. Is there any place I can find clear, correct instructions to do this work? Thanks!
Marty from Muggy Hot South Florida.

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e46 convertible fabric 'C' pillar repair