Some of the prices have adjusted a bit since ~2 years have gone and the product models have aged accordingly, but the process is the same. I usually look up a vacuum model on eBay and the word "parts" and see what's listed to get ideas of what I can or shouldn't bother trying to strip and sell. I have a ton of posts that might be too far back, so the best way is usually to Google my name and recycling/thrifting (even Google images).