For just the trannies that were seen, how much do you think the scrap metal is worth?
Metal and what good hard parts (pumps,drums etc.) you got out of them I would say $50,000 would not be unrealistic.
Pumps and drums for 727's/904's,GM 350/400 Turbo's are getting harder to find so the parts for them continue to climb in price.
It would take alot of work to tear them all down though.