One thing I learned selling on fleabay is to make damned sure your shit is packaged up BEFORE you put the auction up. Even when I'm busy, it's all of 10 minutes to label & unload it when I go somewhere.
This also helps some people along, don't send money until you see it packaged up. Lately people have abused my child-like trust, but thankfully they've ended up with a real big proverbial stick up thier asses.
BTW Credit card-only via paypal, itemized note in paypal (each part, each screw!, is listed & priced), text communication saved/archived, and Regulation Z > any scammer in North America. Not that I'm calling Mark a scammer, just sayin. Nothing a scammer in the USA can do if you do the above, unless you wait over 6 months.
BTW2 Mark, use something like light scotchbrite pads to remove that buildup on the wheels.