I am in process of putting a T56 from a Viper into my truck. I still have to build a driveshaft, but everything else including a used T56 from a Viper is under $2500. The same parts could be used to put this transmission into an A, B, E or even a C-body, but some transmission tunnel surgery would likely be in order.
With that in mind it makes it kind of hard to spent over a grand on an 833 unless you're doing a restoration. Once the truck is done and I start to work on my Valiant a T5 is likely to find its way under it.