We do this all the time with clear vinyl, reverse print, laminated with white. Just print in reverse using registration marks. Before laminating in white, cover the registration marks with either low tack premask, sticky notes, or something similar. After laminating use a stencil knife and cut around the registration marks so that you can pull the white vinyl and premask off exposing the marks.
Considering the size of your job your probably right to want cling with a clear liner. The simpler the better.