I'll answer the questions first and then backfill with pictures.
I didn't have any lighting at all other than magnum torches for most of it. Added those redstone lamps in the floor/walls of the basement later on just so pictures wouldn't be so dark. Looking back at it I see a lamp one level too high, will fix.
Is just the basement and first floor, with one staircase. I have MPS so I just fly through the hole over the tree farm most of the time. Put the stairs in for any visitors who can't fly. Should probably put a ladder in for rooftop access but don't like how any of the ladders look. Maybe I'll let some vine grow on one of the outside walls.
Yeah, I have 6 spotloaders. I eventually covered those up with slabs. I use spotloaders because I've never had a chunk reset with them whereas I've had a few with chunkloaders.
There aren't any generators in there. Maybe what you're thinking are generators are the recyclers up on the wall? I stopped using scrap because of a bug in 1.1.3 and I have enough panels in the roof that I don't need it at this point in either case. Mass fab is even more bugged in 1.1.4, unfortunately, so I have to break and replace it every day.
I have a level emitter set to always craft a panel whenever there is > 500 refined uranium in the system. I have a bunch of other level emitters controlling soime pre-crafting for stuff like carbon plates, refined uranium, coal chunks, etc., just so the crafting isn't really slowed down by waiting on all the compressing that needs done. Lastly there is a bank of level emitters that dump excess materials into a row of chests which a router then empties into an enderchest going back to my main system. That is why most of the storage monitors are around 5k, that is the tipping point for those emitters.