how to tell if the tranny ima buy is in good shape

[ochowdero]

so im going to trade a set of used tires but still in good shape and 60$ for
w58 transmission, master slave and cylinder and driveshaft

is this a good deal?

and on the other hand how can i tell if the tranny is in good shape?

he said he was gonna put it in his car, but needs tires , windows fixed and to pay a bill..so this is where i come along..
but i dont wanna get ripped off..