Too low. Tobiroppo level bounties are an insult to Yamato and Killer.
Think Kid will be like a post-WCI Luffy lvl in the piracy world, a stong captain, but not yet enought to get a 1b subordinate like the emperors, Killer could get a Jinbei like bounty if was only strengt, but his fight with Hawkins who is just a headliner and have a "low" bounty go against him, kind like the Kid Pirates are a step behind the SH's.
For Yamato, power wise think she could get a bounty as big as Jack, but probably this will be her first bounty, and will be a record for a first one i think, and of course to paralel Ace, who was son or Roger, had a strong DF and was a officer of WB and yet didnt get a 1b as he was just a "new" pirate, if compared with other emperors officers like Marco, King and Kata, pretty much what Yamato will also be if she become a pirate after Wano.
Seems like the bounties between 500m and 1.5b are mostly for Emperors officers and some few captains who are emperors in making(like Luffy), as just the fact of u being associeted with a Emperor can put your bounty over Pirate captains that can be stronger than u. We can see that WB, BM and Kaido crews all have this logic.
If we see, most of the independend captains stay between 200-500m.
As Teach with a 2.2b was already seen as a emperor this probably means that only few over 2b bounties exist, probably only the Emperors, Dragon, Ray and Mihawk.
So for post-Wano i see Shanks, Teach and Luffy as established Emperors, while Kid, Law and Buggy as candidades with bounties around 1.5b, with Buggy as the favoritos as he already have a huge fleet like the emperors and is seen by the world as a legend(even if its a gag), different from Law and Kid who are strong but just dont have the fame and fleet to be emperors
What u guys think was Teach post Marineford bounty????
Think he got 1.247b for defeating Ace, betraying the WG, invading the ID, forming a strong crew, killing WB and eating two DF, them+1b for defeating Marco and the WB pirates.