Fuses or Breakers

[MyCleveland]

What about the sccr at 5 KA. Is that an issue with residential stuff being at 10 KA?

It could be but doubtful.
Small wire is your friend, chokes the AFC down quickly.
Assume FULL 10k AFC at your panel.
Just 5' from your panel...
#10 CU > 4282 AFC
#8 CU > 4530 AFC
#6 CU > 4692 AFC