Helping a friend rebuild after sandy and I have a few maybe to some, amateur questions so please bare with me. The home in questions first floor has been completely gutted about 6' high the panel, meter, and all devices must be replaced completely. Now what the home owner wants is the panel to be relocated to the second floor. My question is are there any residential specific codes that say I can't put a splice box in place of the old panel on the first floor and extend all unaffected home runs up to the newly installed panel on the second floor? Is it acceptable to install a main panel on the second floor of a dwelling in a hallway? Is there a maximum distance that can be inbetween the meter and the panel with 2/3 romex connecting them? And do I need to plywood the inside of the wall where the panel, home runs and feed will be in? (Since it will be a sheetrock on both sides wall is plywood called for on the non panel side) Any help would be greatly appreciated. Thanks and be safe out there.