meanwhile i am sitting here, thinking 3k jews and 23 tickets are 33 rolls, which is close to the average of required rolls for an ssr.
in my book, must have.
Bare minimum ssr weapon and eido complete and as much of those items mentioned above as time allows without sacrificing anything else in RL.
What people seem to not mention, going for more souls = more tickets = chances to roll more weapons/eidos/fodder/seeds/gems. Its not only the rewards, but the stuff you get on top through the tickets.

Don't really care about seeds/HE's used, what i do value is time. How much is everyone willing to spend on this game is their own choice.

But on topic, i do think that people that care enough about the game to get a minimum amount of information from forums, should aim for as many rewards as possible, since some will stick around for longer, and bite themselfes in the rear later that they did not finish the event.