We started camping last year when she was 3 months old. She just turned 1 a few days ago. We did a longer 10 day trip to Utah when she was 6 months old. We had a very small bassinet and put it at my wife's feet on the overhead. She's fairly short and both fit fine. I need the whole width of the bed to stretch out (6'3") It seemed to do the trick for us. She slept in a snow suit and blanket, she was more than warm enough.
My biggest issue was kid crap management. Her stuff filled most of the camper! We used a tupperware tub for her clothes. Make sure you bring a couple good plastic bags just in case there is a major poop blowout and no place to put the soiled dirty clothes. We were caught off guard with that one once or twice.
We had to search for a bit but we found a good wireless monitor. Most ends which go near the baby are 120V, we found one that had a 9V? maybe 12V?, whatever, it didn't need a 120V plug in. We could sit around the fire and just listen on the monitor to make sure she was alright.
Chairs - this is what we have. Its awesome - http://www.parentfai...e/#.U1AAbfmtHE4 Just kidding. The Chicco works really well, very versitile. I guess if you're not near a picnic table it might be an issue... I'm intrigued for what you might get or use. http://www.toysrus.c...62508.7-2265745 One night it snowed quite a bit, we used the Bumbo with a food tray attachment and set it on the upper bed. She could eat and play and we didn't have to worry about her falling.
Point of the story - It was definitely more work with her but rewarding nonetheless. Your first time will be a mess. Trust me. You'll get better as you keep camping and learn what to take and leave behind. Please do report back. I'm sure I could learn some tips as well.