Taking in to consideration the effort you guys are putting in to provign your honesty . I feel you guy's are a genuine bunch. What are the Machines that are currently Available ? and can you give a List of the prices please. And for a web interface for monitoring use these and get someone to customise them for you   https://github.com/getminera/minera    https://github.com/viabtc/mineragent  . To evaluate your facility you might be able to hire a service like this http://asiaqualitycontrol.com/supplier-audit-service-china-asia/supplier-evaluation/qc-checklist-preparation/#