I''l keep that in mind if I ever become a millionaire!
You might checkout the possibility of volunteering at your local aquarium (if you have one and if they have in-tank cleaning). I know our aquarium has a crew of volunteer tank cleaners and talked to one of the mothers of one of the guys I saw cleaning on my last visit. You would have to get certified and the rules, for safety reasons are strict, but it would not hurt to check into the possibility. You might not get to do a ceph tank but a little investigation might prove to be interesting.