When could the Dallas tickets possibly go on sale? And how much should I expect to spend?

\#1. I plan on buying the membership for presale so I want to be able to get the day off for the specific day they will have presale

\#2. Honestly I really would want to get a seat in the 100s and maybe a zip up ! I want to have enough money on me for everything and so far I have around 540 and still saving but I’m questioning if that will be enough or if I should gather up more money