I know we spoke a bit about this yesterday Blair. But if you happen to get your hands on some heavier dumbbells or kbs, you can teach a lot of the deadlift mechanics a lot easier. I have to do this multiple times a month when working with one of our gyms law enforcement classes. Some come in late at night so to make it simpler we use a kb for their first few exposures.
Might be easier to get your hands on 3-4 sets of heavy dbs and a little cheaper too.