Maybe 50 .
I stopped at 43 here
I have some thousand tokens to spend but it's a matter of principles.
I play as a wealthy team 35 t contract +30 daily box + 50 from Gold1 + miscellaneous + 100 tokens from a monthly card (but I have them for free as a mod)
and I try to stay there (or to save few).
My challenge in TE is to earn titles and do a good sources management .