If Kid and Law have the same bounty as Luffy Emperor, than Dragon can really have the highest bounty ever
Let's be honest. Oda will never shit on his MC.
Big Mom's defeat was comparable to King's one.
So kidd and law having the exact same bounty as Luffy when first of all they have 1b less than luffy to have the same at the end is impossible.
Luffy 3,5 or 3,6.
Law and kidd : 3,5 or 3,6.
Same yes but (law 1,8b+ kidd 1,8b) is also a possibility.