  In a recent paper, we have studied associative realizations of the
noncommutative extended Snyder model, obtained by including the Lorentz
generators (tensorial coordinates) and their conjugated momenta. In this paper,
we extend this result to also incorporate a covariant realization of the
$\kappa$-Poincar\'e spacetime. We obtain the coproduct, the associative star
product and the twist in a Weyl-ordered realization, to first order in the
noncommutativity parameters. This could help the construction of a quantum
field theory based on this geometry.
