Which Carb kit do I need

Kit for Holley 6594.
Hygrade 596 Rebuild Kit
Float Hygrade FL93
Float can also be found using Holley number Holley 216-38
Original Chrysler kit is #3685803 but it does not come with float.
Most rebuild kits don't include the float.
All of these numbers can be found on eBay or you can call one of the Carb shops listed.