  The 2D t-J model with and without t' and t'' hopping-terms is studied by
exact diagonalization on a 5 x 4 cluster, which realizes a hole stripe in
y-direction in a dimerized singlet background. Next nearest hopping terms with
a sign appropriate for hole-doped cuprates enhance the stripe formation. The
dispersion of the quasiparticle-peaks in the single-particle spectrum is in
good agreement with a simple bond operator theory for hole motion in the
spin-Peierls phase, particularly so for realistic values of t' and t''. The
resulting spectral weight distribution and Fermi surface agree well with
experimental ARPES spectra on La_1.28 Nd_0.6 Sr_0.12 Cu O_4.
