As an International applicant, should I retake the SAT to maximum my chance of being admitted to JHU

Given the stats below, in consideration of my chances, is it worthwhile to retake the SAT?
Rank: About Top5%
UWGPA:3.98/4
SAT: RW720, Math800
SATII: MathII800, Chem800, Bio800
Awards: UK Chem Olympiad-Gold, British Bio Olympiad-Gold, USABO-Gold, Australia Chem Olympiad-Gold, Canadian Chemistry Contest-Gold

Would you be full pay, or will you need financial aid?

I think it’s need-aware for international applicants, so I would be full pay, reluctantly. Also, would it make a large difference if my calculated need be ,say, 10k?

^“Need aware” means they will consider your need for FA for admissions. JHU is 100% need met, which means if you get in, they will offer FA using the same criteria as for other accepted students. https://finaid.jhu.edu/undergraduate-aid/international-students/. Run the Net Price Calculators first to see if you are even eligible for aid. If not, it would be to your admissions advantage to apply as full pay. If you would only qualify for a small amount, then you and your family have to question whether you are willing and able to forego the aid to gain the advantage. If I am understanding you right, if the calculated need is $10k, that means you are responsible for the balance. Can your family afford approx $65k a year? Is $40k (10k x 4) affordable and worth the admissions advantage?

On your test question, have you just taken the SAT once? If so, I’d take it one more time to try to get your reading score up. JHU superscores (takes the highest component from different sittings).