I get your point in posting what some models claim, yet some could be following the example of their predecessors who greatly exaggerated their numbers or used gimmicks to shock. This is especially true in the use of bra sizes. Completely meaningless numbers/cup sizing.
As an example. Mistress Rhiannon, who has/had MONSTER implants on her small frame made several videos where she spoke of her procedures and gave her implant volume. She said hers were 4200cc at a point when they were perhaps their largest. That almost seems like an underestimate considering how massive they appear to be. It's possible she went a bit larger (but not much) since she also did fill-ups. She appeared with Minka in several videos at that time and both Minka and the camera dude noted that Rhiannon was a bit larger than Minka. That said, the number you list for Minka seems awfully optimistic at 6000 as Minka has not grown since those videos with Rhiannon.
Chelsea wore the infamous 10K shirt when she claimed to have hit 10,000cc. She is not currently double that size. Sure they must weigh a ton, they are not 90+lbs.
Back to my earlier point. Beshine claims her implants weigh 42lbs each. I'd say that would be crippling weight. Can any of you lift a 45lb plate from the gym in each hand and move around as she does? Can you do it if you're a small guy?
Those office water jugs are about 5 gallons. They are heavy and cumbersome. She has two of those on her chest?!?! I don't think so.
At her claimed 130lbs, that's an addition of well over half her body weight in implants. Her tits do not look like 5 gallons apiece, let alone could she carry 10 gallons with relative ease.
If you had 65% of your body weight strapped to your chest, standing up or bending over would probably take far more effort than she seems to need in doing the same.
I could be way off base here of course as she might have super-human strength. Yet I'm doubtful.