Looking up how much scrap metal is in a 2001 Odyssey and this text just crosses my phone, "Just what do you think you're doing, Jeff?" Estimate for transmission, gulp, $4,250.
Calling around, found a place 2 blocks away that estimates $1500 less than that. Also, contacted the dealer that put a new (reman) one in 3 years ago. They're another grand more.
Call and got much cheaper quotes from reputable recommended sources. Original guy, said he can match if I permit a non-RebuiltByHonda remanufactured Honda Transmission.