Sounds like you've had some proper bad luck there mate!

I've bought 3 cars off eBay, but went to see all of them before I bid - I know that's not always possible, but it's the only way I'd be prepared to bid on one.

Went to see a black Focus once, which the guy had described as mint only to discover it had had a pot of white gloss paint spill in the boot and go all down the rear panel and bumper. He'd used thinners or something and had fucked the paint. Car was a proper state inside too!