New Kitchen (Sloping) Floor
So my fiancee just closed on an old house on Thursday. Built in 1910. Sorta colonial-ish. Anyway, we're working away on the living room/dining room area as far as paint, plaster repair, cleaning, etc. We're going to be moving to the kitchen next. So the house had an addition off the back at some point, which lengthened the kitchen by about 25%. With the addition, they put in a mudroom as well as a half bath, a spot for the washer/dryer, and a, let's say, study. My problem is this: the floor is covered with ancient linoleum that we'd like to replace. I can see from the basement that the original part of the kitchen has hardwood, but I don't think the newer section does. I can see from underneath is diagonal sheathing. Also, the floor pitches pretty well in the original part, the high point is the beam marking the end of the original house, and it slopes inward towards the front of the house.
So what should my plan of attack be? I have to do some sistering in the basement due to some powder post beetle work on some of the floor joists, but should I be making an effort to level the floor some, or will that just result in cracked plaster? I'm just nervous about installing a new floor in the kitchen and having it slowly wreck itself because of the slope.