Replacing existing bad breaker box
I have a 125 amp 24 circuit FPE box that needs to be changed.In my scouting the home centers, I came up with a Square D, QO box ( I like the idea of copper bus) the 200amp, 30/40 unit will fix the spot of the existing FPE unit. By moving the new box up higher on the wall ( in the basement) the circuit breakers will be in the same place, ( in other words, the wires should reach). I called the power company, they said the underground wiring was 4 0T aluminum. The meter and socket are both rated for 200 amps. Will have to check the jumper between the meter socket and the main breakers, but will have them increased if needed by an electrician. I don't need a larger service, but I do need more circuits, maybe it will help with the lights dimming too. So as long as I was doing the work, why not maximize the current too? ( FYI the 150amp box, was 4 inches taller than the 200amp. A better fit with 200amp box?? )
Question one, in Omaha Nebraska, is it legal to do this work myself ( I do own and live here) I have replaced or redid a lot of wiring.
Question two, the house was built in 1972, what if anything do I need to do about ground fault and arc fault circuits, do they have to be in the breaker box? Or the rooms ( i.e GFIi)
Question three, do I need permits and inspections, since the is essentially a repair job?
Thank You. Bruce