Eric, sorry to read about your tank, that is a horrible feeling when you first notice a crack in your tank. Although it would be nice to have some one to share in the cost of your loss I'm going to have to agree with weaver5. I sell a lot of corals here on RC and I am all about service but in this case if it were me on the selling end I just don't know if I would be able to share in the cost. There is always going to be a risk in purchasing used equipment and especially a used glass tank. And unfortunately it is common for glass tanks to be damaged or weakened during a move.
If you haven't already purchased containers you might look at getting one of the large Rubbermaid often used by reefers as fuges. A 100 gallon Rubbermaid would be able to support all of your inhabitants and LR for an extended period of time while you search for a new tank or while the one you have is being repaired. Maybe someone on our board has one you could borrow, if not most feed stores carry them.