gani et se wrote:I think that for 39 foot plants, I'd look at espalier. Trellis them sideways; who wants to use a fruit ladder to harvest tomatoes? 
Brilliant! I don't grow them 39' tall but they do get to big for the 5' cages and I have been stacking wire ring type cages on top upside down
so I have something to tie them to. I have the type cages described and they have been in action for pushing 20 years. I just don't have enough
of the 5' cages to stack two for all the tomatoes I am trying to grow. I may try that too.
Espalier would work in some situations I have and not in others but I will give it a shot this year. It will be a way to formalize what usually happens
when the tomato plants and beans run together. My black cherry tomatoes ran all down the bean trellis.