Urgent, Unsecured Script Finder

Very important programming job, willing to pay in excess of $10k for a job done well done. I'm looking for experts in the area of scripting, perl scripts in particular, and security exploits within them (especially [login to view URL]) even more specifically. I want to create software capable of spidering or searching through as many domains as possible as quickly as possible, looking for this security vulnerability, most likely using search engines as the domain finding/gathering mechanism. It must be verstaile enough not only to find "cgi-bin/formmail.pl" scripts, but also those residing elsewhere, and those with slightly altered names "cgi-bin/form.pl", provided this doesnt cause any massive speed lost. Speed and efficiency are key. Also, the programmer I work with MUST have a complete knowledge of proxies, and anonymity therein, and must be able to enable the software to run behind anonymous proxies. To reassure the programmer a bit (assuming this is necessary), I am not a spammer or hacker, or anything of that nature. I have a patched and fixed script that I market to the admins and owners of the at-risk domains, and am merely trying to find an extremely efficient way to establish who I should be directing marketing towards.