My day job is an electrician,and industrial is where I am most comfortable. On Ebay, I have purchased brand new switches that would have worked for your application for a 10th of the original cost you mentioned. But I have been known to walk away from paying customers who show no interest in having a safe installation. Why would I (or anyone) throw out a potentially unsafe idea that someone might act on-even if you would not? Or why would I want to chance that a code compliant switch that I suggest would be installed improperly?
I am not trying to be unkind, but the implication was that you wanted the cheapest solution, regardless of safety.