Purdue University holds classes for farming accidents including grain bin accidents.
The Anderson's in Ohio has a guy that does classes and will come to your site. Our County TRT had him up here in Michigan this spring and he did a great job. Hope it helps!
This is the contact for the instructor. If he can't help you, a company called START Rescue in Michigan does a very similar program. Let me know if you need any furthur assistance.
Admin Support Person: 419-891-2908