I recently added an 1803 state floor plan to complement the 1853 plans I had added a short while ago. I wish I had a matching 1803 second floor, but the first floor shows, I believe, one of the prime differences between the 1800 mansion and the 1817 mansion: the strange and awkward original grand stair at the west end of the Cross Hall. (Oh, what I would give for a contemporary etching of Jefferson on that stair…).
I also have a plan from around 1880, and I thought I had one from 1864 or so, which would have shown the house as Lincoln knew it, with the private passage thru today’s Treaty Room to his office. Look for these soon.