Exterior walks 10' wide
Blue areas are level. Red areas are sloped. Pink area is slab on grade near machinery building with stairs at northwest corner of it.
The red is not quite level, but slopes down about 1 foot.
Cook car would have to be relocated. There appears to be room on east side of machinery building. New ramp would be in the area of the existing cook car.
Slab in front of building could either be structural on bar joists or slab on grade on structural fill. Structural fill would be against wooden foundation.