I claim the ornamental design for a body bed rack for a model vehicle, as shown and described.
FIG. 1 is an upper, right, front, perspective view of a body bed rack for a model vehicle;
FIG. 2 is a front elevation view thereof;
FIG. 3 is rear elevation view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a lower, left, rear, perspective view.
In the drawings, the broken line showing of features of the body bed rack for a model vehicle illustrate portions of the body bed rack for a model vehicle that form no part of the claimed design.