The ornamental design for a spacesaverbottomassembly, as shown and described.
FIG. 1 is a top right perspective view of a spacesaver bottom assembly according to a preferred embodiment of my design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof; and,
FIG. 5 is a top plan view thereof.
The broken lines in the figures are for illustrative purposes only and form no part of the claimed design.
The bottom view of the spacesaver bottom assembly is not shown in the drawings or described in the specification and, therefore, forms no part of the claimed design.