c. Not sure what bells and whistles to ask about.
I guess I want GFE breakers somewhere.
Where should they be put in ?
Any potential problem in having one in the service box if there is already
one or two GFE's on outlets in the circuit ?

GFI = Ground Fault Interrupter (also GFCI)

GFE = Girlfriend Experience, a term used by prostitutes for a type of
service, according to "The Urban Dictionary"

If you are going to have a GFE in your house, this is wrong group to
talk about it. :-)

JK