Where are you in Michigan? One of my buddies is a great wreck diver and great instructor, but his teaching schedule has been scaled way back as a result of some family issues. If he can't do it, I am sure he can recommend someone. He knows a lot of people in the area. We are in the Metro Detroit area, but may be able to give you a referral elsewhere. If you want to PM me some information, I can try to put you in touch, or if you would prefer, I can just ask him to check this thread. Are you certified for trimix?