We've had more then our share of questionable sellers on the site lately, adding a link to your Mercedes Forum thread may improve your credability.

Our question when we get a low post seller is, do you really have the parts to sell or have you copied some good words from an ebay seller and posted them here? In other words, are you another scammer?

Most would list. "Stainless Roll Bars":
Mercedes SLK R170 / Crossfire Polished Stainless Steel Roll Bars - TUV Approved | eBay

You say that yours are stronger then OEM. Are they better/stronger then the same style, brand new bars listed on ebay as TUV approved for $249?