Doesn't it require the same number of EQP/EQM to earn status regardless of elite status?

I'm asking because I'm seriously considering doing a AA Platinum challenge next March. I have a planned trip to China in Q that will earn 18000 EQM/9000 EQP. Getting an extra 1000 EQP shouldn't be difficult.

If I qualify for PLT in say April, how long will my status last? I'm considering doing a RTW type trip on AA Explorer Award after this trip to China. Will elite status allow me to book exit row seats on award tickets? Does this apply to partner metal flights?