columbia 2 speed

[flatheadA]

Hello,
I'm looking at a columbia 2 speed rear end,I think its a 39 because it has juice brakes and wide five rims.I spotted it at a local yard ,they don't know when it was in use last,it still has the wishbones and the tube attached(drums and wheels also).The owner says he has the controls also.Are parts still available for these .My question is what is the value of this item.

flatheadA