I wouldn't take 7 figures for my flash cards for several reasons. One, the liability of all the copyrighted information (fair use since I own the books, although I don't have the right to distribute). Two, the time I put into it is essentially priceless.
Try to organize your classmates/residents, or make your own cards. There is no easy path to acquire the knowledge.
My best advice to residents (when they ask MHO) is that they do whatever worked for them in med school.