Kevin's finances are murkier than the depths of the Am Hole on a moonless night.
Regarding the inheritance he said:
"In case y'all start assuming I'm rich: My portion of the money I'm splitting with like 20 other relatives will be enough for my breast augmentation. That's it."
A brief search suggests that breast augmentation costs between $3-10k.
He started receiving monthly checks is March 2020. If the distributions are for 12 months, he's receiving between $250-$833 monthly ending in March 2021. If the distributions are for 24 months he's receiving between $124-$416 monthly ending in March 2022. Etc.
His insurance is "Kaiser Permanente through Medicare (yes, Medicare, not Medicaid, long story)". You have to be disabled to get Medicare if you're under 65. Kevin is obviously disabled. What's odd is that he doesn't have Medicaid also. I think you're dual eligible if you're disabled and under 65 + poor. Either he's not poor enough to qualify, or he was too stupid to sign up.
His expenses include rent ("I call it rent but it's my contribution to the ranch's expenses" "rent is $500") and toys.
Bottom line, if the inheritance is Kevin's only source of money then he is very poor and will soon be broke. He will then be entirely reliant on begging while waiting for another relative (who forgot to write him out of the will) to die.