I would like to even my floor out. It is the original 150+ floor. No subfloor. Around the outside walls it has buckled and the board sticks up almost an inch. Needless to say all furniture has shims under them to make them level. The support beams in the basement are tree trucks , some still have bark on them. The basement foundation is field stone. Is it possible to level it and how? Or am I better not to mess with what mother nature is doing to my house!