  As a further elaboration of the proposal of Ref. [1] we address the
construction of Standard-like models from configurations of stacks of
orientifold planes and D-branes on an internal space with the structure
${(Gepner model)^{c=6} \times T^2}/Z_N$. As a first step, the construction of
D=6 Type II B orientifolds on Gepner points, in the diagonal invariant case and
for both, odd and even, affine levels is discussed. We build up the explicit
expressions for B-type boundary states and crosscaps and obtain the amplitudes
among them. From such amplitudes we read the corresponding spectra and the
tadpole cancellation equations. Further compactification on a T^2 torus, by
simultaneously orbifolding the Gepner and the torus internal sectors, is
performed. The embedding of the orbifold action in the brane sector breaks the
original gauge groups and leads to N=1 supersymmetric chiral spectra. Whenever
even orbifold action on the torus is considered, new branes, with worldvolume
transverse to torus coordinates, must be included. The detailed rules for
obtaining the D=4 model spectra and tadpole equations are shown. As an
illustration we present a 3 generations Left-Right symmetric model that can be
further broken to a MSSM model.
